<figure><img src="image_55.png" /><figcaption>Figure VI.1 Schematic of SHE and SAHE. (a) In the SHE symmetry the spin current Js along z has a spin polarization σ perpendicular to both, Js and Jc, $J_s \propto \theta_{SHE}(J_c \times \sigma)$. (b) In the SHE symmetry the spin current Js along z has a spin polarization σ parallel (or antiparallel) to magnetization m, $J_s \propto \theta_{SAHE}(J_c \times m)$.</figcaption></figure>

## SAHE+SHE in ferrimagnets

We started with STFMR measurements and damping modulation as described in Chapter IV. We carried out these measures together with David Céspedes-Berrocal, an internship student from UNI in Lima, Peru, that spent 5 months with us in 2018, and then another 5 months in 2019. The main sample system is GdFeCo/Cu/NiFe grown by magnetron sputtering. The magnetization of NiFe is in the plane of the sample, and that of GdFeCo is naturally out of plane. This was verified independently by SQUID-VSM measurements and by broadband frequency dependence of the NiFe and GdFeCo resonance fields, respectively. In Figure VI.2 we present some examples of the FMR spectrum, where we identify the NiFe and GdFeCo lines, and of the damping modulation of the NiFe line. At low frequencies, the resonance field of NiFe is low and the magnetization of GdFeCo is kept out of the plane. In this situation, we turn off the SAHE contribution of GdFeCo and leave only the SHE contribution. No modulation of the NiFe damping is observed with the added dc current. This was confirmed with other samples where the GdFeCo is much thicker, and in the whole frequency range measured $m_{GdFeCo}$ are kept out of the plane. This indicates that the SHE contribution of GdFeCo would be weaker than the other contributions. However, returning to the main sample, at frequencies higher or equal than 10 GHz, the resonance field of NiFe is larger than the field needed to align $m_{GdFeCo}$ within the plane. In this condition, a damping modulation of NiFe is observed, whose origin we have attributed to the SAHE effect plus SHE of GdFeCo. We have checked with other systems to further validate our results. In samples where there is only Cu/NiFe we did not observe any damping modulation. We have compared with similar structures like Pt/Cu/NiFe where we also observe the damping modulation. If we quantify the conversion efficiency, as shown in Chapter IV eq. (4.26), we get $\theta_{Eff}^{GdFeCo/Cu} = +0.82 \pm 0.06$ for GdFeCo and $\theta_{SHE-Eff}^{Pt/Cu} = +0.032 \pm 0.002$ for Pt. Our results then show that the overall efficiency of GdFeCo/Cu is more than 20 times higher than the one in Pt/Cu. If we also quantify the
efficiency of the associated DL torque in these experiments, $\chi_{\text{SOT}}^{\text{DL}} = \frac{H_{\text{DL}}}{j_c} = \frac{\hbar}{2e} \frac{\theta_{\text{SHE}}^{\text{eff}}}{\mu_0 M_s t_F}$, we find that $\chi_{\text{SOT(GdFeCo)}}^{\text{DL}} = +9.9 \times 10^{-10}$ Oe/(A/m$^2$) for GdFeCo/Cu and $\chi_{\text{SOT(Pt)}}^{\text{DL}} = +0.42 \times 10^{-10}$ Oe/(A/m$^2$) for Pt. The value found for Pt is similar to other values already reported in that system [93]. However, the value for GdFeCo/Cu is very large, and it would be the highest reported so far at room temperature.

<figure><img src="image_56.png" /><figcaption>Figure VI.2 SAHE study in GdFeCo. (a) STFMR scan of GdFeCo/Cu(6)/NiFe three-layer coated with 3 nm Al. We can identify the FMR lines of each magnetic layer. (b) Sketch of the FMR condition of the NiFe and the conversion of charge current into spin current in the GdFeCo layer. (c-f) FMR linewidth modulation of NiFe with the dc bias current. In (f) the sample has a thinner Cu layer which allows the modulation to be observed at a lower frequency. Adapted from Céspedes-Berrocal et al. (to be submitted).</figcaption></figure>

## Self-torque in ferrimagnetic materials

Due to its symmetry, the SAHE cannot produce self-torque. However if you have a FM/NM Rashba interface, the FL component can produce self-torque, and the DL component also under certain conditions. We start then to study the FL and DL components in various GdFeCo based systems.

To advance with this study we carried out second harmonic measurements. We started this with David Céspedes-Berrocal during his second stay in the first half of 2019, and then
continued it with Aldo Arriola, also an internship student from UNI, and more recently with
Heloïse Damas who is a master's student at the University of Lorraine.

Second harmonic

A technique that has spread rapidly to quantify the efficiency of inter-conversions between
charge current and spin current and especially the DL and FL torques and fields is the
technique so-called second harmonic. In this technique an ac current is applied and the
transverse voltage of the first and second harmonic is measured in a Hall cross device. In a
sample with the magnetization out of plane, i.e. M//z, when the field is applied in the plane
parallel (perpendicular) to the current the coefficient hDL (hFL) can be extracted. As I will not
show experimental results I will skip the formalism or measurement protocol, which is widely
known [236-240]. I will only mention that during the M2 stage with Heloïse we have shown
from the magnetic susceptibility and the LLG equation including the SOT terms the same
equations that are used to determine the effective fields FL and DL [236-240].

In FiM materials, studies using bilayers with Pt or Ta have been reported. They show that DL torque efficiency seems to diverge around the magnetic compensation temperature or magnetic compensation concentration [241–243]. Although later it has been shown that the divergence would occur in the angular compensation [244]. Recently, DL and FL signals have been reported in isolated FiM, CoTb between Si₃N₄ [240]. Our results present different trends than those shown so far in the literature.

Zero-field switching

As I mentioned in the summary, we seek to explore and exploit the self-torque to achieve
switching of magnetization without the use of heavy metals, and without any applied field.
For now, I will only mention that we obtained the switching without a magnetic field, in a
robust and reproducible way though still with heavy materials (measurements performed
along with Heloïse Damas). Note added in October 2020 after the first lockdown: it turned
out that the zero-field switching could not be reproduced in other devices, so we believe that
it was only the effect of a domain wall pinned in the very first device studied.

Recently, it was shown that there is a concentration gradient in the GdFeCo layers and that
this gives rise to DMI in the amorphous volume of the FiM [245]. If there is DMI, then there
is also Rashba effect. This adds to our exploration of the self-torque in addition to exploiting
the interfaces. There are very recent results showing electrical zero field switching on
FM1/FM2 bilayers, or with wedges. We are also exploring and will explore other alternatives.
There is much to be done. Dependence on thickness, concentration, and temperature should
be studied as well as dependence in the selection of materials and interfaces, and so on.
VI.2 Exploring magneto-electric properties in Ga$_{2-x}$Fe$_{x}$O$_{3}$

A very attractive material used par excellence in magnonics is the ferromagnetic insulator YIG. It has the advantage of having low damping; it has also been used to study the longitudinal spin Seebeck effect, spin Nernst, spin Hall magnetoresistance and unidirectional magnetoresistance. On the other hand, the study of oxides is a very rich field itself. Even more if we add that it is magnetic, or AFM, and insulating. Recently, ISHE spin pumping has been reported in AFM/Pt and AFM/Ta bilayers [246,247]. This requires a special experimental facility where hundreds of GHz and multi-Tesla field can be reached. In our case we can only reach 40 or 65 GHz and 9T, soon up to 14 T but we do not have the facility to use higher frequencies.

What about Ga$_{2-x}$Fe$_{x}$O$_{3}$? Ga$_{2-x}$Fe$_{x}$O$_{3}$ is an oxide that is magnetic, insulator, and magneto-electric [248,249]. Although its magneto-electric properties have yet to be established or confirmed experimentally in thin films. The Curie temperature is about $T_C \approx 370$ K and $M_s=100$ kA/m$^2$ for x=1.4 in thin films and bulk [250-252]. Magnetic anisotropy constants of Ga$_{2-x}$Fe$_{x}$O$_{3}$ are high, which bring to FMR condition also in high frequencies range, between 90 and 130 GHz [253,254]. We have tried to measure it by applying a gate voltage, expecting to vary its magnetic anisotropy, but we have not yet observed FMR. We are then trying to study if they have a strong SAHE effect using a three-layer structure, Ga$_{0.6}$Fe$_{1.4}$O/Cu/NiFe as we have developed in the previous project. Also, we will perform the study of spin wave propagation in Ga$_{2-x}$Fe$_{x}$O$_{3}$ to estimate its spin diffusion length. To do this, we will use a simple geometry, of two bars or Pt strips parallel to each other. One bar will serve as a detector and the other as an injector. This has been widely used. Recently, using this geometry the SHE and SAHE study was reported in NiFe [234], and a high $l_{sf}$ in epitaxial NiO [255].

We have been studying some magnetotransport properties using the Ga$_{0.4}$Fe$_{1.6}$O$_{3}$(t)/Pt(5) bilayer structured in Hall bars. Samples were grown by PLD on SrTiO$_{3}$ substrates at IPCMS in Strasbourg and the lithography and magnetotransport measurements performed in Nancy along with our post-doc Elodie Martin. **Figure VI.3** shows the Ga$_{2-x}$Fe$_{x}$O$_{3}$ crystalline structure and some results of longitudinal and transversal resistances. We observe that the sign of AHE changes between 40 K and 120 K (the AHE is better observed after taking off the linear contribution due to ordinary Hall effect). This is something observed in FMI/HM as YIG/Pt [256,257], YIG/Pd, etc. We are conducting more systematic and thorough measurements, and in control samples to discern whether the change in sign is due to some transition in Pt or Ga$_{2-x}$Fe$_{x}$O$_{3}$. Well understood, being the Ga$_{2-x}$Fe$_{x}$O$_{3}$ insulator, the magnetotransport is detected due to the interface and the induced moment in Pt. So far, we have no observed a sizable effect due to the gate voltage. The next step will be to use doped SrTiO$_{3}$:Nb substrate in order to have a more effective gating effect.
<figure><img src="image_57.png" /></figure>

Figure VI.3 Towards confirmation of the magneto-electric effect in Ga₂ₓFeₓO₃. (a) The Pc21n orthorhombic structure of Ga₂ₓFeₓO₃ (GFO), showing the double hexagonal close-packed stacking of oxygens (ABAC), and the 3 octahedral and 1 tetrahedral cationic sites. The orange arrow stands for the electrical polarization P, which is perpendicular to the film plane. Adapted from [258]. (b) Schematic of a double-cross Hall bar of Pt patterned on top of GFO thin film. The connections for the longitudinal and transverse electrical measurements are shown together with the coordinate axis used. (c) Transversal and (d) longitudinal resistivities as function of perpendicular magnetic field. The variation of longitudinal resistance as function of Hx and Hy has the same behavior as for Hz. We can observe in both Rₓₓ and Rᵧ that a transition occurs below 120 K

VI.3 Topological insulators and 2D systems for spin-
orbitronic and spin-caloritronic

My most recent funded project is TOPTRONIC. I don't have much to say or present yet, as we are just getting started. I want to explore in this project new paradigms in this field using spin-charge current conversion by spin-momentum locking at interface states of novel topological insulators (TIs) such as α-Sn and half-Heusler alloys, i.e YPtBi, GdPtBi, and so on, integrated with non-classical magnetic materials such as Heusler alloys (HA). This goal is strongly coupled to the objective of using the spin-charge current conversions in different types of devices including power generators for the transformation of heat flow into electrical
power thanks to new spin-thermal effects where a temperature gradient generates a spin current. The 3-Dimensional TIs are insulators in their bulk but hold metallic topological states in their surfaces which leads to a prediction of high efficiency for charge-spin current conversion by the phenomenon called Edelstein Effect (EE), and its reciprocal, the inverse EE as discussed in previous chapters. Linking materials growth, surface spectroscopies and spin-orbitronics studies, I intend to show that harnessing EE (IEE) in these new nanostructures is a very promising way for harvesting energy and magnetic memories applications. Two main goals of the project are schematized in Figure VI.4. Besides, fundamental questions open up such as: what is the interaction between a full spin polarized film and a TI film? I will study the role of the different parameters that govern the physics of these systems and the different time scales involved with the objective to tailor high efficiency devices. Achieving any of these aims will represent a major breakthrough towards topological spin-orbitronics and topological spin-caloritronics.

Stephane Andrieu, our MBE specialist, along with his PhD student, Victor Palin, have already succeeded in growing epitaxial YPdBi. We will soon see whether or not it is TI or Weyl semimetal by ARPES measurements.

<figure><img src="image_58.png" /></figure>

Figure VI.4 Two main goals of TOPTRONICS project. (a) A temperature gradient $\nabla T$ can generate a spin current in the ferromagnetic HA layer which in turn could be converted into an output voltage V, due to the expected high spin-charge conversion efficiency on the topological states. The combination of these effects can be used for harvesting energy. (b) Materials that have spin texture as in TI or two-dimensional systems (2DEG) can efficiently generate a $J_s$ spin current, which can then be used to manipulate the magnetization M of a ferromagnetic (FM) layer. These effects can be used in applications such as magnetic memory and logic circuits.
VI.4 Conclusions

I have described in this manuscript some of my main findings. All these results are related to spin current or spin accumulation as well as spin-charge current interconversion. I have described from the diffusion and absorption in nano-devices of lateral spin valves to the ferromagnetic resonance and dynamics of magnetization. Then I have moved to present and discuss results on spin pumping ferromagnetic resonance, spin-torque ferromagnetic resonance and spin-orbit torque switching. The first results are during my post-doc, then as a permanent researcher since October 2015. Since then, I have been enriched with the training or supervision of internship student, master students, doctoral students and post-doctoral fellows as well as collaborations with visiting researchers.

All the experiments I have described or mentioned will allow me to advance in the understanding of new effects and phenomena, as well as to face the current and future projects with more confidence since the study or realization of a research project will enrich the others projects as well.

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# Annexe A: Curriculum Vitae

ROJAS SANCHEZ Juan Carlos, CNRS Researcher Scientist

Institute Jean Lamour UMR 7198 CNRS
Université de Lorraine
2 allée André Guinier BP 50840
54011 Nancy Cedex, FRANCE

Date of birth: 10/28/1976
Place of birth: Chepén, La Libertad, Peru

Nationality: French - Peruvian
Two children (born in 2000 and 2009)

Marital status: married

Mail: juan-carlos.rojas-sanchez@univ-lorraine.fr

ResearcherID: N-9963-2015 (http://www.researcherid.com/rid/N-9963-2015)

## EDUCATION

* **Apr. 2005 – Feb. 2011**
  **PhD in Physics.** Balseiro Institute (National University of Cuyo) – Bariloche Atomic Center, Bariloche, Argentina.
  Awarded on February 15th, 2011. Interrupted all 2010, back in Peru.

* **Aug. 2003 – Dec. 2004**
  **Master in Physics.** Balseiro Institute - Bariloche, Argentina.

* **Jan. 2000 – Jul. 2003**
  Interruption (teaching position in Peru).

* **Apr. 1994 – Dec. 1999**
  **Bachelor in Physics.** Science Faculty, National University of Engineering, Lima, Peru.

## CURRENT POSITION

Since October 2015:
**CNRS permanent researcher** position at Institute Jean Lamour (IJL), Nancy, France. "Chargé de recherché" (1st rank in this national concourse with 4 CNRS positions and 90 admitted applicants).

## INSTITUTIONAL RESPONSABILITIES

* **January 2018- Present**
  **Head of the Micro and nanotechnology platform of Lorraine**
  IJL's CC-MINALOR (250 m² cleanroom facilities including three permanent staff). Institute Jean Lamour.

## FELLOWSHIPS AND PREVIOUS POSITIONS

* **Oct. 2013-Sept. 2015**
  Unité Mixte de Physique CNRS/Thales, Palaiseau, France
  Postdoctoral fellow in the group of Prof. A. Fert.

* **Aug. 2013 – Sept. 2013**
  **Institut Néel**, Grenoble. France. Postdoctoral fellow

* **Jan. 2013 – Jul. 2013**
  SPINTEC, INAC/CEA-Grenoble. France. ANR SpinHall postdoctoral fellow
* Jul. 2011 – Jan. 2013
Laboratoire de Nanostructures et Magnetisme INAC/CEA-
Grenoble, France. Eurotalents-CEA (FP7 Marie Curie
Actions). Postdoctoral fellow.

FUNDING as principal investigator:

* TOPTRONICS Topological Spin-orbitronics. ANR- France. Grant: 256 k€. 01/2020-09/2023. https://spin.ijl.cnrs.fr/projects/toptronic/

* MISSION (MagnetoelectrIc oxideS for SpIn-OrbitroNics). ANR- France. Grant: 202 k€. 10/2018-03/2022. https://spin.ijl.cnrs.fr/projects/mission/

* RECENT (REcycling Energy with New Thermoelectric effects). Cellule Energie-CNRS. Grant: 15 k€. 2017.

* Chercheur de l'avenir. FEDER-FSE Lorraine. Grant: 50 k€. 2016-2018.

* CEA-Eurotalents. PEOPLE Marie Curie Actions. Post-doctoral fellowship. Grant: 102 k€. 2011-2013

AWARDS

CNRS Bronze medal 2020

MAIN TOPICS OF RESEARCH: SPINTRONICS / SPIN-ORBITRONICS

* Spintronic, spin-orbitronics and spin caloritronics: Study of spin-orbit torque, spin pumping ferromagnetic resonance, spin-torque ferromagnetic resonance, spin Hall magnetoresistance, spin Hall effect, Edelstein effect and Spin Seebeck effect, second harmonic, unidirectional magnetoresistance. Recently, discovery of huge spin anomalous Hall effect in GdFeCo ferrimagnetic films and self-induced spin-orbit torque

* October 2013 – September 2015:

❖ Inverse Edelstein Effect by spin pumping ferromagnetic resonance: Spin-charge current conversion in topological insulators and oxides Rashba interfaces.

❖ Spin-orbit torque switching in Pt/(Co/Ni)3/Al.

* August 2013 – September 2013:

❖ Magnetic Domain Wall propagation in Pt/Co/GdOx.

* July 2011 – July 2013:

❖ Inverse spin Hall Effect and spin pumping ferromagnetic resonance: Spin memory loss at Co/Pt, and Co/Cu/Pt interfaces. Determination of spin Hall angle and spin diffusion length of Pt.

❖ Inverse Edelstein Effect by spin pumping ferromagnetic resonance: Spin-charge current conversion at Ag/Bi Rashba interface.

❖ ISHE and spin pumping ferromagnetic resonance in semiconductors: Spin injection in Ge.

❖ Spin Hall Effect, Inverse Spin Hall effect and spin absorption in lateral spin valves.

❖ Hanle effect in lateral spin valves: in-plane and out-of-plane spin precession.

* April 2005 – February 2011: Ph.D. in Physics at Balseiro Institute, Bariloche, Argentina.

❖ Growth and characterization of oxides perovskites: multilayers and super-lattices.

❖ Exchange bias at oxides La0.25Sr0.75MnO3/LaNiO3 interfaces.

❖ Ferromagnetic resonance study: determination of magnetic anisotropies

❖ Microfabrication of magnetic tunnel junction based on oxides perovskites.
* **2 Ph.D.** students:
  Pierre VALLOBRA ended 05/02/2019
  Thai Ha PHAM ended 05/05/2020

* **3 Master** students:
  Thai Ha PHAM (2016)
  Jean-Loüis BELLO (2018)
  Heloïse DAMAS (2020)

* **Mentoring of 10 internships** students from USA (2), Peru (2), China (3), Mexico (1) and Argentine(1)

Heisemberg TARAZONA: 2 months in 2017, PhD student at *Universidad Nacional Mayor de San Marcos*, Peru.

Hilal SAGLAM: 6 months in 2017, PhD student at Argonne National Laboratory, Illinois, USA.

Jianying QIN: 15 months 2017-2018, PhD student at State Key Laboratory of Magnetism, Institute of Physics, Chinese Academy of Sciences, China.

Sheena PATEL: 9 months started 2017, PhD student at California University, San Diego, USA.

Jinhui SHEN: 1 month July 2018, PhD student at Fudan University, Shanghai, China.

David Luciano CESPEDES-BERROCAL: 5 months started March 2018, B.S. Physics Engineering student at *Universidad Nacional de Ingeniería*, Peru. 6 more months in 2019

Aldo ARRIOLA-CORDOVA: 4 months started September 15th 2019, B.S. Physics Engineering student at *Universidad Nacional de Ingeniería*, Peru.

Yunhan CAI: 12 months started March 2019, PhD student at Fudan University, Shanghai, China.

Silvestre NOVOA: 6 months started March 2020, Master student at UNAM, Mexico.

María-José BURGOS: 6 months started March 2020, PhD student at Balseiro Institute-CAB, Argentina.

**TEACHING ACTIVITIES**

* **Mar. 2011 – Jul. 2011** Contractual assistant professor at National University of Engineering, Peru. Total 84 hours. I was in charge of Tutorials (seminars and work labs) of several modules for undergraduate students of Electric and Electronic engineering.

* **Aug. 2010 – Dec. 2010** Contractual Professor at National University of Engineering, Peru. Total 132 hours. Lecturer in «Material characterization». Master in Physics: 28 hours of lectures and 56h of work lab. 48h of lecturers in «Experimental Physics» for graduated students.

* **Mar. 2001 – Jul. 2003** Contractual assistant professor at National University of Engineering, Peru. Total 588 hours, an average of 196h/year. I was in charge of Tutorials (seminars and work labs) of several modules to physics undergraduate students.

* **Jul. 2000 – Dec. 2002** Contractual assistant professor at Cayetano Héredia University
(medicine undergraduate student, 168h), and *Universidad de Ciencias Aplicadas* (engineering undergraduate student, 96h). tutorials, seminar and work lab of General Physics.

* Mar. 2000 – Jul. 2000 Math teacher at elementary school, Lima, Peru.

## ORGANISATION OF SCIENTIFIC MEETINGS

* **2019:** Co-chair of **SPIN PERU**, International Workshop Spintronics 2019, Ollantaytambo, Peru. http://spinphys.riken.jp/workshop/spinperu/

* **2018:** Chair of the last **focus session in spin-orbitronic MA.57 at the Joint DPG/EPS** in Berlin, Germany.

* **2017:** Scientific committee and local organizing committee member at the **IEEE Frontiers in Magnetism: Topological Insulator and Outreach for applications** in Nancy, France.

* **2016:** Scientific committee member and chair in one session at the International **IWST**, Nancy, France.

* **2016:** Local committee member at the **Colloque Louis Néel**, Saint-Dié-des-Vosges, France.

* **2015:** Chair of the **FR.G.3_Domain Wall Motion session in the 20th ICM**, Barcelona, Spain.

## REVIEWING AND EVALUATION ACTIVITIES since October 2015

* **Referee for** international peer-reviewed major scientific journals: Nat. group (Nat Phys., Nat. Mater. Nat Asia Mater., Sc. Reports), APS (PRL, PRB, PRAppl, PRX, Rev. Mod. Phys.), AIP (APL, JAP), Wiley (Advance Materials Lett., Adv. Materials, PSS RRL), ACS (Nano Letter)

* **Reviewer of research project** for UNMSM, Peru (2017); FONDECYT, Chile (2017); US Department of Energy, USA (2018, 2019); AENAS, Spain (2018); ANR, France (2019,2020); EU.

* **Expert for the French Micro and nanotechnology Observatory** (OMNT), 2016-2017.

* **Board member** of Ph. D. Thesis Defense, June 2017, SPINTEC, Grenoble, France.

## RESEARCH RECORD (ISI Web of Science, July 2020)

* **40 publications** in international peer-reviewed journal including 1 Nat. Mater., 2 Nat. Comm., 3 Nano Lett., 3 Phys. Rev. Lett, 4 Phys. Rev. Appl., 8 Phys. Rev. B and 6 Appl. Phys. Lett. I am the first author in 9 of my publications and second author in other 9 publications.

* **1479 citations** (36.9 citations per article).

* **4 highly cited paper** (top 1% for the field and publication year). First author in three of them and corresponding author in the fourth one. Nat Comm. 2013, PRL 2014, PRL 2016 and Nat. Materials 2016

* **h-index:** 16

## CONFERENCES AND SEMINARS

* **17 invited presentations** including APS March meeting 2017, Young researcher leaders group - Spice, Mainz 2017, Intermag 2018, DPG/EPS 2018, EMRS Fall 2018.

* **8 contributed talks** at international conferences such as Intermag 2018 (2)

* **14 seminars** at Universities and research laboratory including SPINTEC in 2016, ETH Zurich in 2017, Nanogune-Spain, UCLA-USA, NJUST-Nanjing-China and Southeast Univ-Nanjing-China in 2018.
## Some selected personal invited conferences

1. Topological insulators and Rashba interfaces as efficient converters of spin to charge current: towards low power consumption and energy harvesting. **EMRS Fall Meeting** in Warsaw, Poland, September 17th-20th, 2018. **Invited**

2. Highly tunable spin-to-charge conversion in 2D electron gas at LaAlO₃/SrTiO₃ interfaces. **Intermag 2018** in Singapore, April 23th-27th, 2018. **Invited**

3. Interfacial spin-orbitronic: spin-charge conversion in topological insulators and Rashba interfaces. **65th AVS Symposium** in Long Beach, CA, October 21-26, 2018. **Invited**

4. Topological insulators and Rashba interfaces as efficient spin-charge current converters. **JMC 2018** in Grenoble, August 27th-31st. **Invited**

5. Interfacial spin-orbitronic: Rashba interfaces and topological insulators as efficient spin-charge current converters. **DPG/EPS Meeting 2018** in Berlin, March 11th-18th. **Invited**

6. Interfacial spin-orbitronics: large spin-charge current conversion in α-Sn topological insulator and potential for giant Spin Seebeck effect in YIG/α-Sn. **Young Research Leaders Group Workshop: Insulator spintronics-strong-coupling, coherence and entanglement** (Mainz, Germany, July 31st - August 4th 2017). **Invited**

7. Efficient spin-orbitronic systems: Rashba interfaces and topological, New Trends in Topological Insulators, NTTI2017, (Locarno, Switzerland, July 16th-21st 2017). **Invited**

8. Spin-to-charge conversion at interfaces: spin pumping, Rashba coupling, and topological insulators. **APS March Meeting 2017** (New Orleans, USA, March 2017). **Invited**

9. Tuning the Spin Orbit Torque-critical current density to reverse perpendicular magnetization in CoTb ferrimagnetic based alloys. **14th RIEC International Workshop on Spintronics** (Sendai, Japan, November 2016). **Invited.**

10. Rashba interfaces and Topological Insulators for efficient spin-to-charge current conversion at room temperature, **International Workshop on nano-Spin Conversion and Quantum Spin Dynamics, NSCS-QSD**, (Tokyo, Japan, October 2016). **Invited.**

## Early achievements track-record

**11 SELECTED PUBLICATIONS.** *Citations numbers from ISI Web of Science and google scholar (GS)*

* **Spin-charge current conversion in metals and semiconductors**

1. Spin Pumping and Inverse Spin Hall Effect in Germanium. **J. -C. Rojas-Sánchez**, M. Cubukcu, A. Jain, C. Vergnaud, C. Portemont, C. Ducruet, A. Barski, A. Marty, L. Vila, J.-P. Attané, E. Augendre, G. Desfonds, S. Gambarelli, H. Jaffrès, J. -M. George and M. Jamet. Phys. Rev. B 88, 064403 (2013). **Cited 58, 80 in GS. First author.**
2. Spin pumping and inverse spin Hall effect in platinum: the essential role of spin-memory loss at metallic interfaces. **J-C. Rojas-Sánchez**, N. Reyren, P. Laczkowski, W. Savero, J-P. Attané, C. Deranlot, M. Jamet, J-M. George, L. Vila and H. Jaffrès: *Phys. Rev. Lett.* **112**, 106602 (2014). **Highly cited (301, 417 in GS)**. First author.

3. Experimental evidences of a large extrinsic spin Hall effect in AuW alloy. P Laczkowski, **J-C Rojas-Sánchez**, W Savero-Torres, H Jaffrès, N Reyren, C Deranlot, L Notin, C Beigné, A Marty, J-P Attané, L Vila, J-M George and A Fert. *Appl. Phys. Lett.* **104**, 142403 (2014). **Cited 40, 66 in GS.**

* **Inverse Edelstein Effect: Spin-charge current conversion in Rashba interfaces and topological insulators:**

4. Spin-to-charge conversion using Rashba coupling at the interface between non-magnetic materials.

J C Rojas Sánchez, L. Vila, G. Desfonds, S. Gambarelli, J.P. Attané, J. M. De Teresa, C. Magén and A. Fert: *Nature Comm.* **4**:2944 doi: 10.1038/ncomms3944 (2013). **Highly cited (315, 456 in GS)**. First author. Opened a new research line.

5. Spin to charge conversion at room temperature by spin pumping into a new type of topological insulator: α-Sn films.

J.-C. Rojas-Sánchez, S. Oyarzun, Y. Fu, A. Marty, C. Vergnaud, S. Gambarelli, L. Vila, M. Jamet, Y. Ohtsubo, A. Taleb-Ibrahimi, P. Le Fèvre, F. Bertran, N. Reyren, J.-M. George and A. Fert: *Phys. Rev. Lett.* **116**, 096602 (2016).

Highly cited (120, 194 in GS). First author and corresponding author. So far the only study where the existence of topological states was evidenced by ARPES prior to the spintronics experiments in the very same sample. The largest spin/charge current conversion efficiency measured at room temperature.

6. Highly efficient and tunable spin-to-charge conversion through Rashba coupling at oxide interfaces.

E. Lesne, Y. Fu, S. Oyarzun, J.C. Rojas-Sánchez, D.C. Vaz, H. Naganuma, G. Sicoli, J.-P. Attané, M. Jamet, E. Jacquet, J-M. George, A. Barthélémy, H. Jaffres, A. Fert, M. Bibes and L. Vila. *Nat. Mater.* **15**, 1261 (2016).

Highly cited (178 citations, 231 in GS). Corresponding author. The largest spin/charge current conversion efficiency measured (at 7 K).

* **Spin-orbit torque magnetization switching**

7. Perpendicular magnetization reversal in Pt/[Co/Ni]/Al multilayers via the Spin Hall Effect of Pt.

J.-C. Rojas-Sánchez, P. Laczkowski, J. Sampaio, S. Collin, K. Bouzehouane, N. Reyren, H. Jaffres, A. Mougin and J.-M. George. *Appl. Phys. Lett.* **108**, 082406 (2016).

Cited 39, 45 in GS. First author and corresponding author.

8. Thermal Contribution to the Spin-Orbit Torque in Metallic-Ferrimagnetic Systems. Thai Ha Pham, S-G Je, Pierre Vallobra, Thibaud Fache, Daniel Lacour, Gregory Malinowski, Marie-Claire Cyrille, Gilles Gaudin, Olivier Boulle, Michel Hehn, **J-C Rojas-Sánchez** and Stéphane Mangin. *Phys. Rev. Appl.* **9**, 064032 (2018).

Corresponding author. **Cited 12, 16 in GS.** Discovery of a new characteristic temperature, *T*<sub>switch</sub>, above the magnetic and angular compensation temperatures and below Curie temperature. **First author is my PhD student.**

* **Exchange bias, optical switching and skyrmions**

9. Manipulating exchange bias using all-optical helicity-dependent switching.
P. Vallobra, T. Fache, Y. Xu, L. Zhang, G. Malinowski, M. Hehn, J.-C. Rojas-Sánchez, E. E. Fullerton, and S. Mangin. *Phys. Rev. B* **96**, 144403 (2017). Corresponding author. Cited 5, 8 in GS. First author is my PhD student.

10. *Creation of Magnetic Skyrmion Bubble Lattices by Ultrafast Laser in Ultrathin Films*. Soong-Geun Je, Pierre Vallobra, Titiksha Srivastava, Juan-Carlos Rojas-Sánchez, Thai Ha Pham, Michel Hehn, Gregory Malinowski, Claire Baraduc, Stéphane Auffret, Gilles Gaudin, Stéphane Mangin, Hélène Béa, Olivier Boulle. *Nano letters* **18*, 7362-7371 (2018). (14 citations, 26 in GS). Fist author is a post-doc and the second author is my Ph. D. student.

* Spin-orbit driven ferromagnetic resonance or spin-torque ferromagnetic resonance

11. *Charge-spin current conversion in high quality epitaxial Fe/Pt systems: Isotropic spin Hall angle along different in-plane crystalline directions*. C.Guillemard,S. Petit-Watelot, S. Andrieu and J-C Rojas-Sánchez. *Appl. Phys. Lett.* **113**, 262404 (2018). Last author and corresponding author. Cited 5, 5 in GS.
# Annexe B: Publication list

The publications list is ranked by citations number according to ISI Web of Science
(July 2020).

1. Spin-to-charge conversion using Rashba coupling at the interface between non-magnetic materials.

Rojas Sanchez, J. C.; Vila, L.; Desfonds, G.; Gambarelli, S.; Attane, J. P.; De Teresa, J.
M.; Magen, C.; Fert, A.

Nature communications 4, 2944 (2013). DOI: https://doi.org/10.1038/ncomms3944
315 citations

2. Spin Pumping and Inverse Spin Hall Effect in Platinum: The Essential Role of Spin-Memory Loss at Metallic Interfaces

Rojas-Sanchez, J. -C.; Reyren, N.; Laczkowski, P.; Savero, W.; Attane, J. -P.; Deranlot, C.; Jamet, M.; George, J. -M.; Vila, L.; Jaffres, H.

Physical Review Letters **112**, 106602 (2014). DOI:
https://doi.org/10.1103/PhysRevLett.112.106602

301 citations

3. Highly efficient and tunable spin-to-charge conversion through Rashba coupling at oxide interfaces

Lesne, E.; Fu, Yu; Oyarzun, S.; Rojas-Sanchez, J. C.; Vaz, D. C.; Naganuma, H.; Sicoli, G.; Attane, J. -P.; Jamet, M.; Jacquet, E.; George, J. -M.; Barthelemy, A.; Jaffres, H.; Fert, A.; Bibes, M.; Vila, L.

Nature materials 15, 1261 (2016). DOI: https://doi.org/10.1038/NMAT4726
178 citations

4. Spin to Charge Conversion at Room Temperature by Spin Pumping into a New Type of Topological Insulator: alpha-Sn Films

Rojas-Sanchez, J. -C.; Oyarzun, S.; Fu, Y.; Marty, A.; Vergnaud, C.; Gambarelli, S.; Vila, L.; Jamet, M.; Ohtsubo, Y.; Taleb-Ibrahimi, A.; Le Fevre, P.; Bertran, F.; Reyren, N.; George, J. -M.; Fert, A.

Physical Review Letters **116**, 096602 (2016).

DOI: https://doi.org/10.1103/PhysRevLett.116.096602

120 citations

5. Crossover from Spin Accumulation into Interface States to Spin Injection in the Germanium Conduction Band

Jain, A.; Rojas-Sanchez, J. -C.; Cubukcu, M.; Peiro, J.; Le Breton, J. C.; Prestat, E.; Vergnaud, C.; Louahadj, L.; Portemont, C.; Ducruet, C.; Baltz, V.; Barski, A.; Bayle-Guillemaud, P.; Vila, L.; Attane, J. -P.; Augendre, E.; Desfonds, G.; Gambarelli, S.; Jaffres, H.; George, J. -M.; Jamet, M.

Physical Review Letters **109**, 106603 (2012).

DOI: https://doi.org/10.1103/PhysRevLett.109.106603

67 citations

6. Exchange-bias effect at La<sub>0.75</sub>Sr<sub>0.25</sub>MnO<sub>3</sub>/LaNiO<sub>3</sub> interfaces

Rojas Sanchez, J. C.; Nelson-Cheeseman, B.; Granada, M.; Arenholz, E.; Steren, L. B.
Physical Review B **85**, 094427 (2012). DOI:

https://doi.org/10.1103/PhysRevB.85.094427

59 citations
7. Spin pumping and inverse spin Hall effect in germanium
Rojas-Sanchez, J. -C.; Cubukcu, M.; Jain, A.; Vergnaud, C.; Portemont, C.; Ducruet, C.; Barski, A.; Marty, A.; Vila, L.; Attane, J. -P.; Augendre, E.; Desfonds, G.; Gambarelli, S.; Jaffres, H.; George, J. -M.; Jamet, M.
Physical Review B **88**, 064403 (2013). DOI:
https://doi.org/10.1103/PhysRevB.88.064403
58 citations

8. Experimental evidences of a large extrinsic spin Hall effect in AuW alloy
Laczkowski, P.; Rojas-Sanchez, J-C; Savero-Torres, W.; Jaffres, H.; Reyren, N.; Deranlot, C.; Notin, L.; Beigne, C.; Marty, A.; Attane, J-P; Vila, L.; George, J-M; Fert, A.
Applied Physics Letters **104**, 142403 (2014). DOI: https://doi.org/10.1063/1.4870835
52 citations

9. Perpendicular magnetization reversal in Pt/[Co/Ni](3)/Al multilayers via the spin Hall effect of Pt
Rojas-Sanchez, J-C.; Laczkowski, P.; Sampaio, J.; Collin, S.; Bouzehouane, K.; Reyren, N.; Jaffres, H.; Mougin, A.; George, J-M.
Applied Physics Letters **108**, 082406 (2016). DOI: https://doi.org/10.1063/1.4942672
39 citations

10. Velocity asymmetry of Dzyaloshinskii domain walls in the creep and flow regimes
Vanatka, M.; Rojas-Sanchez, J-C; Vogel, J.; Bonfim, M.; Belmeguenai, M.; Roussigne, Y.; Stashkevich, A.; Thiaville, A.; Pizzini, S.
Journal of Physics: Condensed Matter **27**, 326002 (2015). DOI:
https://doi.org/10.1088/0953-8984/27/32/326002
32 citations

11. Very large domain wall velocities in Pt/Co/GdOx and Pt/Co/Gd trilayers with Dzyaloshinskii-Moriya interaction
Thai Ha Pham; Vogel, J.; Sampaio, J.; Vanatka, M.; Rojas-Sanchez, J-C; Bonfim, M.; Chaves, D. S.; Choueikani, F.; Ohresser, P.; Otero, E.; Thiaville, A.; Pizzini, S.
EPL (Europhysics Letters) **113**, 67001 (2016). DOI: https://doi.org/10.1209/0295-5075/113/67001
32 citations

12. Spin-orbit torque-induced switching in ferrimagnetic alloys: Experiments and modeling
Je, Soong-Geun; Rojas-Sanchez, Juan-Carlos; Thai Ha Pham; Vallobra, Pierre; Malinowski, Gregory; Lacour, Daniel; Fache, Thibaud; Cyrille, Marie-Claire; Kim, Dae-Yun; Choe, Sug-Bong; Belmeguenai, Mohamed; Hehn, Michel; Mangin, Stephane; Gaudin, Gilles; Boulle, Olivier
Applied Physics Letters **112**, 062401 (2018). DOI: https://doi.org/10.1063/1.5017738
20 citations

13. Large enhancement of the spin Hall effect in Au by side-jump scattering on Ta impurities
Laczkowski, P.; Fu, Y.; Yang, H.; Rojas-Sanchez, J. -C.; Noel, P.; Pham, V. T.; Zahnd, G.; Deranlot, C.; Collin, S.; Bouard, C.; Warin, P.; Maurel, V.; Chshiev, M.; Marty, A.; Attane, J. -P.; Fert, A.; Jaffres, H.; Vila, L.; George, J. -M.
Physical Review B **96**, 140405 (2017). DOI:
https://doi.org/10.1103/PhysRevB.96.140405
19 citations
14. Evidence for spin-to-charge conversion by Rashba coupling in metallic states at the Fe/Ge(111) interface
Oyarzun, S.; Nandy, A. K.; Rortais, F.; Rojas-Sanchez, J.-C.; Dau, M. -T.; Noel, P.; Laczkowski, P.; Pouget, S.; Okuno, H.; Vila, L.; Vergnaud, C.; Beigne, C.; Marty, A.; Attane, J.-P.; Gambarelli, S.; George, J.-M.; Jaffres, H.; Bluegel, S.; Jamet, M.
*Nature communications* **7**, 13857 (2016). DOI: https://doi.org/10.1038/ncomms13857
19 citations

15. Spin transport in p-type germanium
Rortais, F.; Oyarzun, S.; Bottegoni, F.; Rojas-Sanchez, J-C; Laczkowski, P.; Ferrari, A.; Vergnaud, C.; Ducruet, C.; Beigne, C.; Reyren, N.; Marty, A.; Attane, J-P; Vila, L.; Gambarelli, S.; Widiez, J.; Ciccacci, F.; Jaffres, H.; George, J-M; Jamet, M.
*Journal of Physics: Condensed Matter* **28**, 165801 (2016).
DOI: https://doi.org/10.1088/0953-8984/28/16/165801
17 citations

16. Evidence for spin to charge conversion in GeTe(111)
Rinaldi, C.; Rojas-Sanchez, J. C.; Wang, R. N.; Fu, Y.; Oyarzun, S.; Vila, L.; Bertoli, S.; Asa, M.; Baldrati, L.; Cantoni, M.; George, J.-M.; Calarco, R.; Fert, A.; Bertacco, R.
*APL Materials* **4**, 032501 (2016). DOI: https://doi.org/10.1063/1.4941276
16 citations

17. Independence of spin-orbit torques from the exchange bias direction in Ni81Fe19/IrMn bilayers
Saglam, Hilal; Rojas-Sanchez, J. Carlos; Petit, Sebastien; Hehn, Michel; Zhang, Wei; Pearson, John E.; Mangin, Stephane; Hoffmann, Axel
*Physical Review B* **98**, 094407 (2018). DOI:
https://doi.org/10.1103/PhysRevB.98.094407
16 citations

18. Creation of Magnetic Skyrmion Bubble Lattices by Ultrafast Laser in Ultrathin Films
Je, Soong-Geun; Vallobra, Pierre; Srivastava, Titiksha; Rojas-Sanchez, Juan-Carlos; Thai Ha Pham; Hehn, Michel; Malinowski, Gregory; Baraduc, Claire; Auffret, Stephane; Gaudin, Gilles; Mangin, Stephane; Bea, Helene; Boulle, Olivier
*Nano letters* **18**, 7362 (2018). DOI: https://doi.org/10.1021/acs.nanolett.8b03653
14 citations

19. Switchable Spin-Current Source Controlled by Magnetic Domain Walls
Torres, W. Savero; Laczkowski, P.; Nguyen, V. D.; Sanchez, J. C. Rojas; Vila, L.; Marty, A.; Jamet, M.; Attane, J. P.
*Nano letters* **14**, 4016 (2014). DOI: https://doi.org/10.1021/nl501453p
13 citations

20. Thermal Contribution to the Spin-Orbit Torque in Metallic-Ferrimagnetic Systems
Thai Ha Pham; Je, S. -G.; Vallobra, P.; Fache, T.; Lacour, D.; Malinowski, G.; Cyrille, M. C.; Gaudin, G.; Boulle, O.; Hehn, M.; Rojas-Sanchez, J. -C.; Mangin, S.
*Physical Review Applied* **9**, 064032 (2018).
DOI: https://doi.org/10.1103/PhysRevApplied.9.064032
12 citations

21. Ultralow Magnetic Damping in Co₂Mn-Based Hensler Compounds: Promising Materials for Spintronics
C Guillemard, S Petit-Watelot, L Pasquier, D Pierre, J Ghanbaja, JC Rojas-Sánchez, A Bataille, J Rault, P Le Fèvre, F Bertran, Stephane Andrieu
*Physical Review Applied* **11**, 064009 (2019).
DOI: https://doi.org/10.1103/PhysRevApplied.11.064009

8 citation

22. Evaluation of spin diffusion length of AuW alloys using spin absorption experiments in the limit of large spin-orbit interactions

Laczkowski, P.; Jaffres, H.; Savero-Torres, W.; Rojas-Sanchez, J.-C.; Fu, Y.; Reyren, N.; Deranlot, C.; Notin, L.; Beigne, C.; Attane, J.-P.; Vila, L.; George, J.-M.; Marty, A.
Physical Review B **92**, 214405 (2015). DOI:
https://doi.org/10.1103/PhysRevB.92.214405

7 citations

23. In-plane and out-of-plane spin precession in lateral spin-valves

Sanchez, J. -C. Rojas; Laczkowski, P.; Torres, W. F. Savero; Cubukcu, M.; Nguyen, V. D.; Notin, L.; Beigne, C.; Vergnaud, C.; Marty, A.; Jamet, M.; Vila, L.; Attane, J. P.
Applied Physics Letters **102**, 132408 (2013). DOI: https://doi.org/10.1063/1.4800537

7 citations

24. Nonmonotonic aftereffect measurements in perpendicular synthetic ferrimagnets

Fache, T.; Tarazona, H. S.; Liu, J.; L'vova, G.; Applegate, M. J.; Rojas-Sanchez, J. C.; Petit-Watelot, S.; Landauro, C., V; Quispe-Marcatoma, J.; Morgunov, R.; Barnes, C. H. W.; Mangin, S.
Physical Review B **98**, 064410 (2018). DOI:
https://doi.org/10.1103/PhysRevB.98.064410

6 citation

25. Magnetoresistance effect in (La, Sr)MnO3 bicrystalline films

Alejandro, G.; Steren, L. B.; Pastoriza, H.; Vega, D.; Granada, M.; Rojas Sanchez, J. C.; Sirena, M.; Alascio, B.
Journal of Physics: Condensed Matter **22**, 346007 (2010).
DOI: https://doi.org/10.1088/0953-8984/22/34/346007

6 citations

26. Magnetic study of La0.75Sr0.25MnO3/LaNiO3 multilayers

Granada, Mara; Sanchez, J. Carlos Rojas; Steren, Laura B.; Leyva, A. Gabriela
Physica B: Condensed Matter **384**, 68 (2006).
DOI: https://doi.org/10.1016/j.physb.2006.05.074

6 citations

27. Charge-spin current conversion in high quality epitaxial Fe/Pt systems: Isotropic spin Hall angle along different in-plane crystalline directions

Guillemard, C.; Petit-Watelot, S.; Andrieu, S.; Rojas-Sanchez, J.-C.
Applied Physics Letters **113**, 262404 (2018). DOI: https://doi.org/10.1063/1.5079236

28. Roughness in manganite-based superlattices

Rojas Sanchez, J. C.; Granada, M.; Steren, L. B.; Mazzaro, I.; Mosca, D. H.
Applied Surface Science **254**, 219 (2007).
DOI: https://doi.org/10.1016/j.apsusc.2007.07.036

5 citations

29. Manipulating exchange bias using all-optical helicity-dependent switching

Vallobra, P.; Fache, T.; Xu, Y.; Zhang, L.; Malinowski, G.; Hehn, M.; Rojas-Sanchez, J.-C.; Fullerton, E. E.; Mangin, S.
Physical Review B **96**, 144403 (2017). DOI:
https://doi.org/10.1103/PhysRevB.96.144403

5 citations
30. Giant magnetoresistance in oxide-based metallic multilayers
Granada, Mara; Sanchez, J. Carlos Rojas; Steren, Laura B.
Applied Physics Letters **91**, 072110 (2007). DOI: https://doi.org/10.1063/1.2772237
5 citations

31. Transition from spin accumulation into interface states to spin injection in silicon and germanium conduction bands
Jain, Abhinav; Rojas-Sanchez, Juan-Carlos; Cubukcu, Murat; Peiro, Julian; Le Breton, Jean-Christophe; Vergnaud, Celine; Augendre, Emmanuel; Vila, Laurent; Attane, Jean-Philippe; Gambarelli, Serge; Jaffres, Henri; George, Jean-Marie; Jamet, Matthieu
The European Physical Journal B **86**, 140 (2013).
DOI: https://doi.org/10.1140/epjb/e2013-31067-7
4 citations

32. Spin-Orbit Torque Switching of a Nearly Compensated Ferrimagnet by Topological Surface States
Hao Wu, Yong Xu, Peng Deng, Quanjun Pan, Seyed Armin Razavi, Kin Wong, Li Huang, Bingqian Dai, Qiming Shao, Guoqiang Yu, Xiufeng Han, Juan-Carlos Rojas-Sánchez, Stéphane Mangin, Kang L Wang
Advanced Materials **31**, 1901681 (2019). DOI:
https://doi.org/10.1002/adma.201901681
3 citation

33. Polycrystalline Co2Mn-based Heusler thin films with high spin polarization and low magnetic damping
C Guillemard, S Petit-Watelot, J-C Rojas-Sánchez, J Hohlfeld, J Ghanbaja, A Bataille, P Le Fèvre, F Bertran, S Andrieu
Applied Physics Letters **115**, 172401 (2019). DOI: https://doi.org/10.1063/1.5121614
2 citations

34. Evidence of Pure Spin-Current Generated by Spin Pumping in Interface-Localized States in Hybrid Metal-Silicon-Metal Vertical Structures
Cerqueira, Carolina; Qin, Jian Yin; Dang, Huong; Djeffal, Abdelhak; Le Breton, Jean-Christophe; Hehn, Michel; Rojas-Sanchez, Juan-Carlos; Devaux, Xavier; Suire, Stephane; Migot, Sylvie; Schieffer, Philippe; Mussot, Jean-Georges; Laczkowski, Piotr; Anane, Abdelmadjid; Petit-Watelot, Sebastien; Stoffel, Mathieu; Mangin, Stephane; Liu, Zhi; Cheng, Bu Wen; Han, Xiu Feng; Jaffres, Henri; George, Jean-Marie; Lu, Yuan
Nano letters **19**, 90 (2018). DOI: https://doi.org/10.1021/acs.nanolett.8b03386
2 citation

35. Strain-Enhanced Charge-to-Spin Conversion in Ta/Fe/Pt Multilayers Grown on Flexible Mica Substrate.
Er Liu, T Fache, D Cespedes-Berrocal, Zhi Zhang, S Petit-Watelot, Stéphane Mangin, Feng Xu, J-C Rojas-Sánchez
Physical Review Applied **11**, 054049 (2019).
DOI: https://doi.org/10.1103/PhysRevApplied.12.044074
2 citation

36. Compared Efficiencies of Conversions between Charge and Spin Current by Spin-Orbit Interactions in Two-and Three-Dimensional Systems.
JC Rojas-Sánchez and A. Fert
Physical Review Applied **11**, 054049 (2019).
DOI: https://doi.org/10.1103/PhysRevApplied.11.054049
2 citation

37. Excess velocity of magnetic domain walls close to the depinning field
Caballero, Nirvana B.; Fernandez Aguirre, Ivan; Albornoz, Lucas J.; Kolton, Alejandro B.; Carlos Rojas-Sanchez, Juan; Collin, Sophie; Marie George, Jean; Diaz Pardo, Rebeca; Jeudy, Vincent; Bustingorry, Sebastian; Curiale, Javier
Physical Review B **96**, 224422 (2017). DOI:
https://doi.org/10.1103/PhysRevB.96.224422

2 citation

38. Spin-Charge Conversion Phenomena in Germanium
Oyarzun, Simon; Rortais, Fabien; Rojas-Sanchez, Juan-Carlos; Bottegoni, Federico; Laczkowski, Piotr; Vergnaud, Celine; Pouget, Stephanie; Okuno, Hanako; Vila, Laurent; Attane, Jean-Philippe; Beigne, Cyrille; Marty, Alain; Gambarelli, Serge; Ducruet, Clarisse; Widiez, Julie; George, Jean-Marie; Jaffres, Henri; Jamet, Matthieu
Journal of the Physical Society of Japan **86**, 011002 (2016).
DOI: https://doi.org/10.7566/JPSJ.86.011002

2 citation

39. Spin pumping and inverse spin Hall effect in Platinum and other 5d metals: The essential role of spin-memory loss and spin-current discontinuities at interfaces
Rojas-Sanchez, J. -C.; Reyren, N.; Laczkowski, P.; Savero, W.; Attane, J. -P.; Deranlot, C.; Gambarelli, S.; Jamet, M.; George, J. -M.; Vila, L.; Jaffres, H.
Spintronics VII 9167, 916729 (2014). DOI: https://doi.org/10.1117/12.2059646

1 citation

40. Spin-dependent transport characterization in metallic lateral spin valves using one-dimensional and three-dimensional modeling
P. Laczkowski, M. Cosset-Cheneau, W. Savero-Torres, V. T. Pham, G. Zahnd, H. Jaffrès, N. Reyren, J.-C. Rojas-Sànchez, A. Marty, L. Vila, J.-M. George, and J.-P. Attané
Physical Review B **99**, 134436 (2019). DOI:
https://doi.org/10.1103/PhysRevB.99.134436

0 citation