cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.3535/w4g-sb8-py6
title: Orchis militaris L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2220391-1
title: Mapping of High-Temperature Short Range Order in the Fe-Cr system
DOI: 10.5286/isis.e.rb2310633
title: PDF Study of Dynamic Correlated Disorder in the Hydride Ion Conductor Ca2NH

description: Calcium nitride-hydride (Ca2NH) has been shown to promote mild-condition ammonia synthesis as a co-catalyst (Kitano et al., Chem. Sc., 2016). Kitano et al. suggested Ca2NH acted as a hydrogen sink freeing up active sites on the transition metal (Ru) for further disassociation of N2 and H2 gases. EIS conducted at the University of St Andrews shows temperature dependent conductivities associated with type-II (thermally induced) ionic conductors (Boyce, Physics Reports, 1979). A previous QENS experiment (RB 1720393) showed significant Q-dependent broadening associated with this system, strongly indicating H- diffusion. Thus, it’s likely that the ionic conductivity of systems like Ca2NH play a significant role in promoting ammonia synthesis. A PDF experiment could explore the nature of this ionic conductivity and its relation to the structure of Ca2NH. Recent research has pin-pointed correlated disorder as a potential source for high ionic conductivities measured in solid-state systems (Keen & Goodwin, Nature, 2015). Analysis of our previous PDF experiment (RB 1610383) will soon be published in a Chemistry of Materials article outlining the relationship between correlated disorder and ionic conductivity in the superionic conductor BaH2. A clear understanding of the relationship between structure, correlated disorder, and ionic conductivity in the Ca2NH system will benefit future research into nitrogen-hydrogen based co-catalysts for mild-condition ammonia synthesis.
DOI: 10.3535/fs3-z2j-akn
title: Plantae

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2220391
title: Mapping of High-Temperature Short Range Order in the Fe-Cr system
DOI: 10.5286/isis.e.rb2467004
title: Elucidating the structure and ion transport mechanism in lithium halospinels and high-entropy lithium metal chlorides solid electrolytes

description: Lithium metal chloride solid electrolytes are regarded as promising candidate for applying in all-solid-state batteries as they show good ionic conductivities of &gt; 1 mS cm-1 at room temperature and good electrochemical compatibility with 4V class cathode materials. In this project, we developed Zr4+, Al3+, Fe3+ and Mg2+ doped Li2±xSc1-xMxCl4 halospinel with ionic conductivities up to 1.8 mS cm-1. However, the conductivity of Al3+, Fe3+, Mg2+ doped halospinel is &lt; 1 mS cm-1 and lower than computational prediction. We ascribe the reason not only to the different sizes of lattice framework from different sizes of metal dopant, but to a different lithium distribution over the 8a, 16c, 16d and 48f sites. We propose high resolution neutron powder diffraction to elucidate the halospinel structure and especially lithium sublattice at room temperature and 10K. The low temperature data will reduce thermal diffuse scattering and give insights on the origin of high energy 48f site occupancy. We also developped high entropy Li2.05MCl6 (M=Zr, Mg, Ca, Y, Sc, Ho) crystallizing in orthorhombic crystal system, different from the parent structure trigonal Li2ZrCl6, with a 4-fold ionic conductivity boost to 1.6 mS cm-1. All data will be used for Rietveld refinement analysis and combined with negative fourier density map to find all lithium locations, the results will help us elucidating the structure and ion transport mechanism in lithium metal chloride materials.
DOI: 10.5286/isis.e.rb2467004-1
title: Elucidating the structure and ion transport mechanism in lithium halospinels and high-entropy lithium metal chlorides solid electrolytes

description: Lithium metal chloride solid electrolytes are regarded as promising candidate for applying in all-solid-state batteries as they show good ionic conductivities of &gt; 1 mS cm-1 at room temperature and good electrochemical compatibility with 4V class cathode materials. In this project, we developed Zr4+, Al3+, Fe3+ and Mg2+ doped Li2±xSc1-xMxCl4 halospinel with ionic conductivities up to 1.8 mS cm-1. However, the conductivity of Al3+, Fe3+, Mg2+ doped halospinel is &lt; 1 mS cm-1 and lower than computational prediction. We ascribe the reason not only to the different sizes of lattice framework from different sizes of metal dopant, but to a different lithium distribution over the 8a, 16c, 16d and 48f sites. We propose high resolution neutron powder diffraction to elucidate the halospinel structure and especially lithium sublattice at room temperature and 10K. The low temperature data will reduce thermal diffuse scattering and give insights on the origin of high energy 48f site occupancy. We also developped high entropy Li2.05MCl6 (M=Zr, Mg, Ca, Y, Sc, Ho) crystallizing in orthorhombic crystal system, different from the parent structure trigonal Li2ZrCl6, with a 4-fold ionic conductivity boost to 1.6 mS cm-1. All data will be used for Rietveld refinement analysis and combined with negative fourier density map to find all lithium locations, the results will help us elucidating the structure and ion transport mechanism in lithium metal chloride materials.
DOI: 10.3535/10p-7l4-xha
title: Orchis simia Lam.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/xnr-0wx-brq
title: Gagea Salisb.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2320226
title: Interactions between nano-ions and a lipid monolayer: Nano-structural insights from NR

description: Nano-ions have recently attracted increasing interest due to their fascinating properties. Nano-ions such as polyoxometalates (POMs), boron clusters and hydrophobic ions, are nanometric ionic molecules with unique architecture and super-chaotropic properties. They have promising antitumor, anti-infectious and anti-Alzheimer’s activities. Despite nano-ions promising membrane-targeting ability, direct evidence for the proposed mechanism based on the formation and desorption of POM-lipid assemblies is lacking. Their interactions with cell membranes, relevant to their cytotoxicity and drug delivery applications, remain poorly understood. Our recent trial results from XRR experiment at ESRF BM28 showed that mixed 1,2-dioleoyl-sn-glycero-3-phosphocholine (DOPC)/ 1,2-dioleoyl-3-trimethylammonium-propane (DOTAP) vesicles ruptured on mica surface to form lipid bilayers (SLBs). The Kiessig fringes of SLBs become more pronounced with increasing temperature. The addition of nano-ions to SLBs resulted in structural changes, which depend on the type of the nano-ion used. Here, we propose a complementary neutron reflectivity (NR) study of the effects of nano-ions on the lipid monolayer at the air-water interface on an LB trough, as a function of lipid composition, type of nano-ions, concentrations, surface pressure, and temperature.
DOI: 10.5286/isis.e.rb2320226-1
title: Interactions between nano-ions and a lipid monolayer: Nano-structural insights from NR

description: Nano-ions have recently attracted increasing interest due to their fascinating properties. Nano-ions such as polyoxometalates (POMs), boron clusters and hydrophobic ions, are nanometric ionic molecules with unique architecture and super-chaotropic properties. They have promising antitumor, anti-infectious and anti-Alzheimer’s activities. Despite nano-ions promising membrane-targeting ability, direct evidence for the proposed mechanism based on the formation and desorption of POM-lipid assemblies is lacking. Their interactions with cell membranes, relevant to their cytotoxicity and drug delivery applications, remain poorly understood. Our recent trial results from XRR experiment at ESRF BM28 showed that mixed 1,2-dioleoyl-sn-glycero-3-phosphocholine (DOPC)/ 1,2-dioleoyl-3-trimethylammonium-propane (DOTAP) vesicles ruptured on mica surface to form lipid bilayers (SLBs). The Kiessig fringes of SLBs become more pronounced with increasing temperature. The addition of nano-ions to SLBs resulted in structural changes, which depend on the type of the nano-ion used. Here, we propose a complementary neutron reflectivity (NR) study of the effects of nano-ions on the lipid monolayer at the air-water interface on an LB trough, as a function of lipid composition, type of nano-ions, concentrations, surface pressure, and temperature.
DOI: 10.5286/isis.e.rb2490087-1
title: Reactivity of UO2-NPs with H2 as models of spent nuclear fuel
DOI: 10.3535/cmn-1fb-mkr
title: Gagea lutea (L.) Ker Gawl.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/yp3-r7g-aec
title: Cuscuta europaea L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2220657
title: High-pressure powder diffraction studies of organic ionic plastic crystals

description: We wish to probe the effect of pressure on the crystal structures of organic ionic plastic crystals (OIPCs). These are a class of materials used as solid electrolytes in batteries, fuel & solar cells. These materials have a rich landscape of temperature-driven solid-solid phase transitions. One of the many advantages of OIPCs is the ability to tailor their properties by modifications to the cation and/or anion. We now wish to understand the behaviour of these materials under pressure to uncover the influence of the component ions on the phase behaviour. Understanding the effect of pressure is particularly important for achieving the first use of OIPCs as barocaloric materials for refrigeration which requires phase changes at low pressures. We seek to use PEARL to collect high-pressure neutron diffraction data on OIPCs to understand their phase behaviour.
DOI: 10.5286/isis.e.rb2220657-2
title: High-pressure powder diffraction studies of organic ionic plastic crystals
DOI: 10.5286/isis.e.rb2320107-2
title: Effect of LLPS on XoPR/membrane interactions

description: The role of Liquid-liquid phase separation (LLPS) in biology is increasingly recognised. Actin remodelling has been found to involve LLPS, which likely acts to upregulate critical proteins and adjust their activity. Intrinsically disordered protein XopR, has been found to trigger actin remodelling, and undergoes LLPS under a pH of 7.4. Here, neutron reflectometry will be used to determine the consequences of LLPS induction at SLBs by XopR alone in terms of the changes that may occur in the lipid bilayer (SLB restructuring), as well as the type of LLPS that takes place (2D vs 3D, and eventual correlations between LLPS domains. Also, the link between cell membrane stiffness (i.e., cholesterol content) and LLPS at the membrane will be investigated.
DOI: 10.5286/isis.e.rb2320137-1
title: Universality of the Role of Hydrogen in Superconductivity in Nickelates

description: An entire family of superconducting materials of nickel oxides has recently emerged, but materials synthesis requires a two-step process, of depositing oxygen-rich films and then topochemically reducing them in the presence of hydrogen. The superconducting state is challenging to achieve, in part due to the difficulty in controlling hydrogen incorporation into the films during the reduction process. Though hydrogen has been theorized to destroy superconductivity, there have been recent yet controversial claims that hydrogen plays a critical role in and is in fact necessary to achieve superconductivity in infinite-layer Nd0.8Sr0.2NiO2 films. We have used a multimodal approach including neutron reflectometry to study hydrogen incorporation across a variety of nickelate films and have found that hydrogen content is extremely sensitive to initial film quality and the presence of microstructural defects, which can be controlled by a number of factors. However, due to well-known challenges of sample yield, we have only measured samples which do not superconduct. We propose to complete this work by measuring neutron reflectometry of superconducting films of three different compounds of the nickelate family, to understand whether the presence of hydrogen is universally necessary for supporting the superconducting state in nickelate films, or simply a proxy for microstructural defects and sample variation.
DOI: 10.3535/66s-wjq-k11
title: Delphinium halteratum Sm.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/jc6-sb6-4zv
title: Anacamptis coriophora (L.) R.M.Bateman, Pridgeon & M.W.Chase

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2320137
title: Universality of the Role of Hydrogen in Superconductivity in Nickelates

description: An entire family of superconducting materials of nickel oxides has recently emerged, but materials synthesis requires a two-step process, of depositing oxygen-rich films and then topochemically reducing them in the presence of hydrogen. The superconducting state is challenging to achieve, in part due to the difficulty in controlling hydrogen incorporation into the films during the reduction process. Though hydrogen has been theorized to destroy superconductivity, there have been recent yet controversial claims that hydrogen plays a critical role in and is in fact necessary to achieve superconductivity in infinite-layer Nd0.8Sr0.2NiO2 films. We have used a multimodal approach including neutron reflectometry to study hydrogen incorporation across a variety of nickelate films and have found that hydrogen content is extremely sensitive to initial film quality and the presence of microstructural defects, which can be controlled by a number of factors. However, due to well-known challenges of sample yield, we have only measured samples which do not superconduct. We propose to complete this work by measuring neutron reflectometry of superconducting films of three different compounds of the nickelate family, to understand whether the presence of hydrogen is universally necessary for supporting the superconducting state in nickelate films, or simply a proxy for microstructural defects and sample variation.
DOI: 10.5286/isis.e.rb2490037
title: Spin wave measurements in Sr3La8Ir4O24
DOI: 10.5286/isis.e.rb2490037-1
title: Spin wave measurements in Sr3La8Ir4O24
DOI: 10.3535/6k6-2j0-v9r
title: Gagea minima (L.) Ker Gawl.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2368023
title: Randomness driven possible quantum spin liquid phase in the S=1/2 1D HAF Chain Cu(Ampy)ClBr (Ampy= 2-(Aminomethyl)pyridine)
DOI: 10.5286/isis.e.rb2368023-1
title: Randomness driven possible quantum spin liquid phase in the S=1/2 1D HAF Chain Cu(Ampy)ClBr (Ampy= 2-(Aminomethyl)pyridine)
DOI: 10.34816/ifao.archives.232699
title: SAQQARA_pv_2004_04556

description: Référence : pv_2004_04556<br />Site : Saqqara<br />Secteur : Mastaba de Ti<br />Type : photographie<br />
DOI: 10.3535/hpk-cb5-kkv
title: Carex L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/v1g-xja-rs3
title: Dinebra panicea (Retz.) P.M.Peterson & N.Snow

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2410428
title: In-situ neutron diffraction on the working electrode of electric double layer capacitors

description: We propose to use in-situ neutron diffraction to study the working electrode of an electric double layer capacitor. Contrast variation of
the electrolyte solvent (H2O, D2O, HDO) will allow us to experimentally determine three independent differential scattering cross
sections of the aqueous salt solutions in charged confinement to extract pair distribution functions.
DOI: 10.5286/isis.e.rb2410428-1
title: In-situ neutron diffraction on the working electrode of electric double layer capacitors

description: We propose to use in-situ neutron diffraction to study the working electrode of an electric double layer capacitor. Contrast variation of
the electrolyte solvent (H2O, D2O, HDO) will allow us to experimentally determine three independent differential scattering cross
sections of the aqueous salt solutions in charged confinement to extract pair distribution functions.
DOI: 10.5286/isis.e.rb2490027-1
title: Exploring the magnetic excitations in the trimer ruthenate Ba4NbRu3O12
DOI: 10.3535/lc1-nk4-ekf
title: Arabis verna (L.) W. T. Aiton

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/ntg-vhf-wtz
title: Plantae

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2230017
title: Certification of NIST SRMs 676b, 674c and 1878c
DOI: 10.5286/isis.e.rb2291042-1
title: Determination of the compressibility of deuterated microgels using SANS with contrast variation
DOI: 10.5286/isis.e.rb2490027
title: Exploring the magnetic excitations in the trimer ruthenate Ba4NbRu3O12
DOI: 10.34816/ifao.archives.232700
title: SAQQARA_pv_2004_04557

description: Référence : pv_2004_04557<br />Site : Saqqara<br />Secteur : Mastaba de Ti<br />Type : photographie<br />
DOI: 10.3535/397-caf-5a9
title: Orchidaceae

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/45e-cg8-fcr
title: Orlaya Hoffm.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2230017-1
title: Certification of NIST SRMs 676b, 674c and 1878c
DOI: 10.5286/isis.e.rb2310498
title: Mechanistic Understanding of Ageing led Degradation of ODS Steels produced from different Manufacturing Methods

description: The Oxide Dispersion Strengthening (ODS) Steels are candidate material for future nuclear reactors such as in cladding and tubing of high-temperature Gen IV fission reactors, and in blanket surrounding the vessel of fusion reactors. The ODS steels with added nano-size yttrium oxides (Y2O3) provide resistance against irradiation, creep, and swelling. Continuous exposure of high dose neutron irradiation at extremely high temperature transform the nanoparticles into new complex oxides which degrades the mechanical properties and irradiation resistance; both conditions in nuclear reactor applications are ill characterised. In this work we are correlating the effects of ageing led degradation and nanoparticles coarsening on the mechanical properties of two different ODS steels to underpin the consolidation process capable of safeguarding the use of ODS steels in the nuclear reactor life cycle by resisting against ageing. The insitu and exsitu SANS data from thermally aged ODS samples will develop mechanistic understanding of the rate of grain coarsening at different temperatures to underpin the stability of ODS nanoprecipitates that preserve their internal dispersion network and material properties.
DOI: 10.5286/isis.e.rb2310498-1
title: Mechanistic Understanding of Ageing led Degradation of ODS Steels produced from different Manufacturing Methods

description: The Oxide Dispersion Strengthening (ODS) Steels are candidate material for future nuclear reactors such as in cladding and tubing of high-temperature Gen IV fission reactors, and in blanket surrounding the vessel of fusion reactors. The ODS steels with added nano-size yttrium oxides (Y2O3) provide resistance against irradiation, creep, and swelling. Continuous exposure of high dose neutron irradiation at extremely high temperature transform the nanoparticles into new complex oxides which degrades the mechanical properties and irradiation resistance; both conditions in nuclear reactor applications are ill characterised. In this work we are correlating the effects of ageing led degradation and nanoparticles coarsening on the mechanical properties of two different ODS steels to underpin the consolidation process capable of safeguarding the use of ODS steels in the nuclear reactor life cycle by resisting against ageing. The insitu and exsitu SANS data from thermally aged ODS samples will develop mechanistic understanding of the rate of grain coarsening at different temperatures to underpin the stability of ODS nanoprecipitates that preserve their internal dispersion network and material properties.
DOI: 10.3535/39d-0c3-0s8
title: Digitaria violascens Link

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/776-pdx-whf
title: Plantae

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2310328
title: Strain-induced magnetization in collinear antiferromagnet RuO2

description: RuO2 is a colinear antiferromagnet with many interesting properties, including spin current generation arising from its band topology, crystal Hall effect, spin-valley locking and piezomagnetism, and Néel vector-dependent spin current generation from its band anisotropy. While the piezomagnetism, which originates in strain-lifting of the valley degeneracy, has been theoretically predicted, experimental realization has remained elusive. We find an emergent net magnetization in strained RuO2 on Al2O3 and on TiO2 and propose to investigate the origins using polarized neutron reflectometry.
DOI: 10.5286/isis.e.rb2310328-1
title: Strain-induced magnetization in collinear antiferromagnet RuO2

description: RuO2 is a colinear antiferromagnet with many interesting properties, including spin current generation arising from its band topology, crystal Hall effect, spin-valley locking and piezomagnetism, and Néel vector-dependent spin current generation from its band anisotropy. While the piezomagnetism, which originates in strain-lifting of the valley degeneracy, has been theoretically predicted, experimental realization has remained elusive. We find an emergent net magnetization in strained RuO2 on Al2O3 and on TiO2 and propose to investigate the origins using polarized neutron reflectometry.
DOI: 10.5286/isis.e.rb2310700-1
title: Probing of magnetic anisotropy in heavy fermion system Ce3Co4Sn13 with neutron powder diffraction in magnetic field

description: The heavy fermion system Ce3Co4Sn13 has been attracting considerable interest due its puzzling magnetic ground state. It crystallizes in cubic Pm-3n space group with Ce atoms forming three-dimensional frustrated exchange topology. This makes Ce3Co4Sn13 a model system to study interplay between RKKY and Kondo interactions under the presence of geometrical frustration. In spite of the clear anomaly in the specific heat data around 0.7K, no evidence of long range magnetic order has been found in our previous single crystal neutron diffraction experiment on WISH. Two possible scenarios can be proposed to explain the lack of long-range magnetic order. Both of them rely on a strong single ion anisotropy, with the anisotropy easy axis for one of them and easy plane for the other. Surprisingly, our inelastic neutron scattering data could not resolve the issue, since the data were equally well fitted by two sets of the crystal electric field parameters with different type of the magnetic anisotropy. The different anisotropy, however, implies different magnetization process, which we are going to probe using neutron powder diffraction in magnetic field.
DOI: 10.3535/ns4-2cl-k6t
title: Orchis variegata All.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2220389-1
title: Physico-chemical studies of humic substances enabled by controlled binding to an interface