cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.5286/isis.e.rb2310469-1
title: Following lithium distribution, intercalation and loss mechanisms during cycling of solid-state NCM-811 batteries using 2D, 3D and Bragg-edge neutron imaging

description: The main degradation mechanism leading to chemomechanical failure in Li-NCM-811 batteries is the large volume changes of the NCM-811 cathode material occurring during lithiation and delithiation. Although, in principle, this volume change is reversible, its anisotropic nature, in particular, leads to large stresses along the grain boundaries and ultimately to irreversible fracture of the secondary NCM particles. Therefore, a better understanding of the microstructural changes in relation to the electrochemical processes during battery cycling is crucial. In this experiment, the microstructural loss mechanisms and their relation to Li- transport will be studied through neutron imaging of the evolution of the NCM-811 material during operando dis-/charge cycling. In addition, Bragg-Edge imaging will provide details on the spatio-temporal evolution of the nano-scale de-/intercalation processes, the driving forces for the microstructural evolution. Consequently, the experiment will yield new multiscale understanding of the coupled electrochemo-mechanical processes that can help drive future battery development and simulation.
DOI: 10.5286/isis.e.rb2320023
title: Investigation of the impact of polymer brush hydrophobicity and conformational rigidity on oligonucleotide uptake

description: Gene therapy has potential in treating diseases, but challenges remain in improving stability and efficacy of vectors. Polycationic brushes on nanoparticles have shown promise in capturing genetic material with high transfection efficiencies. This proposal aims to investigate the architecture of complexes formed by RNA and mRNA with dense brushes made of various polymers to identify the optimal brush chemistry and architecture for delivering different types of RNA molecules.
DOI: 10.3535/7fb-f8g-enk
title: Ranunculus parviflorus Loefl.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/7vc-btt-67f
title: Astelia menziesiana Sm.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2310556-1
title: Interactions between methanol and active sites in CHA-type zeolite catalysts

description: The increasing demand for fuel and bulk chemicals across the globe and the need to reduce carbon emissions has prompted significant research into more sustainable, and economical, feedstocks to crude oil such as biomass and syngas derived methanol both of which could be used in methanol-to-hydrocarbons (MTH) processes.
CHA-type zeolites, specifically H-SAPO-34, have shown promise for use in the methanol-to-olefins (MTO) reaction and will play a key role in future fuel and chemicals production. The aim of this work is to use INS to probe the interactions between methanol and the Brønsted acid active sites within different CHA-type zeolite catalysts, namely SSZ-13 and H-SAPO-34 both used by industry. Both catalysts will be studied with varying framework composition. The varying Si/Al ratio (dictating the concentration of Bronsted acidic active sites) will allow for the effect of increased acidic site density to be probed. The detailed understanding of methanol behaviour in this key step of the MTO reaction in CHA-type zeolite catalysts will be of crucial importance to the design and optimisation of future MTO catalysts.
DOI: 10.5286/isis.e.rb2390179
title: Thermal expansion of protiated chalcanthite
DOI: 10.5286/isis.e.rb2390179-1
title: Thermal expansion of protiated chalcanthite
DOI: 10.3535/xyy-kex-hq0
title: Neotinea ustulata (L.) R.M.Bateman, Pridgeon & M.W.Chase

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/yxf-h4m-3sz
title: Astelia menziesiana Sm.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2310556
title: Interactions between methanol and active sites in CHA-type zeolite catalysts

description: The increasing demand for fuel and bulk chemicals across the globe and the need to reduce carbon emissions has prompted significant research into more sustainable, and economical, feedstocks to crude oil such as biomass and syngas derived methanol both of which could be used in methanol-to-hydrocarbons (MTH) processes.
CHA-type zeolites, specifically H-SAPO-34, have shown promise for use in the methanol-to-olefins (MTO) reaction and will play a key role in future fuel and chemicals production. The aim of this work is to use INS to probe the interactions between methanol and the Brønsted acid active sites within different CHA-type zeolite catalysts, namely SSZ-13 and H-SAPO-34 both used by industry. Both catalysts will be studied with varying framework composition. The varying Si/Al ratio (dictating the concentration of Bronsted acidic active sites) will allow for the effect of increased acidic site density to be probed. The detailed understanding of methanol behaviour in this key step of the MTO reaction in CHA-type zeolite catalysts will be of crucial importance to the design and optimisation of future MTO catalysts.
DOI: 10.5286/isis.e.rb2320109-1
title: Heterogenous deswelling of PNIPAM-PNIPMAM copolymer microgels

description: In this proposal our aim is that of establishing a link between the Volume Phase Transition (VPT) and the formation of segregation and local homopolymer domains in microgels formed by two distinct thermoresponsive polymers (copolymer microgels). For this purpose, changes in the internal structure of copolymer microgels formed by PNIPAM and PNIPMAM as a function of the molar composition and temperature will be investigated by SANS measurements of dilute suspensions. The use of partially deuterated polymers will allow us to selectively investigate the contribution of each polymer to the formation of domains across the VPT. Model fitting and comparison with monomer-resolved simulations will allow us to link the macroscopic responsiveness to the microscopic internal structure.
DOI: 10.3535/724-f4x-enr
title: Staphisagria macrosperma Spach

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/x8d-sw0-8nv
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.rb2320109
title: Heterogenous deswelling of PNIPAM-PNIPMAM copolymer microgels

description: In this proposal our aim is that of establishing a link between the Volume Phase Transition (VPT) and the formation of segregation and local homopolymer domains in microgels formed by two distinct thermoresponsive polymers (copolymer microgels). For this purpose, changes in the internal structure of copolymer microgels formed by PNIPAM and PNIPMAM as a function of the molar composition and temperature will be investigated by SANS measurements of dilute suspensions. The use of partially deuterated polymers will allow us to selectively investigate the contribution of each polymer to the formation of domains across the VPT. Model fitting and comparison with monomer-resolved simulations will allow us to link the macroscopic responsiveness to the microscopic internal structure.
DOI: 10.5286/isis.e.rb2320323
title: Field dependence of magnetic correlations in the 2D van der Waals magnet CrI3

description: Two-dimensional (2D) van der Waals (vdW) magnets have become the subject of intense interest due to their rich diversity of optical, 
electronic and topologically states. CrI3 is a well known example. In a recent study combining µSR and other techniques, it was revealed 
that bulk CrI3 hosts several magnetic phases with distinct transitions. Remarkably, Tc does not correspond to long range order in the full 
volume but rather to a partial transition. Here we aim to continue our study of magnetic correlations in CrI3. Our previous SANS 
measurements clearly identified distinct magnetic phases with different correlation length. Here we want to obtain a better understanding
of these phases by studying the field dependence of the magnetic contrast in a set of single crystals.
DOI: 10.5286/isis.e.rb2320323-1
title: Field dependence of magnetic correlations in the 2D van der Waals magnet CrI3

description: Two-dimensional (2D) van der Waals (vdW) magnets have become the subject of intense interest due to their rich diversity of optical, 
electronic and topologically states. CrI3 is a well known example. In a recent study combining µSR and other techniques, it was revealed 
that bulk CrI3 hosts several magnetic phases with distinct transitions. Remarkably, Tc does not correspond to long range order in the full 
volume but rather to a partial transition. Here we aim to continue our study of magnetic correlations in CrI3. Our previous SANS 
measurements clearly identified distinct magnetic phases with different correlation length. Here we want to obtain a better understanding
of these phases by studying the field dependence of the magnetic contrast in a set of single crystals.
DOI: 10.3535/82w-8mq-nva
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: 10.3535/wy4-dhe-fpj
title: Staphisagria macrosperma Spach

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2220259
title: Structural characterisation of Co6W6N: a new and unreported electrocatalyst for water splitting
DOI: 10.5286/isis.e.rb2220259-1
title: Structural characterisation of Co6W6N: a new and unreported electrocatalyst for water splitting
DOI: 10.5286/isis.e.rb2320267-2
title: The Back-End-Of-Line (BEOL) Compatible Antiferromagnet PtMn

description: Back-end-of-line (BEOL) processes in device fabrication often require thermal annealing up to 400°C for 3 hours. This is too high for most antiferromagnetic (AFM) materials, such as the ubiquitous IrMnx alloys, where Mn diffusion happens too readily for BEOL compatibility. Hence, there is significant interest worldwide to identify suitable alternative AFM materials many of which have an L10 structure.

One such material is the equiatomic alloy Pt50Mn50. However, this stoichiometry has two stable phases: a low temperature paramagnetic face-centred cubic (fcc) phase and a higher energy face-centred tetragonal (fct) phase, where the latter has the needed AFM ordering. The thermal energy applied during BEOL processes can be used to trigger the phase transformation from fcc to fct. As such the AFM no longer needs to be robust to the BEOL process, as it becomes part of it. Optimising and controlling this phase transition is key – often achieved with long, high temperature anneals.

We have used a wide range of experimental techniques to characterise a set of PtMn samples deposited on different seed layers. The seed layers (Pt, Ru and Nb) were chosen so as to manipulate the crystallisation of a PtMn layer through lattice mismatch and intermixing effects. Polarised Neutron Reflectometry (PNR) will be used as a complementary technique to validate or disprove our current interpretation of our results. The collected data would contribute towards a peer reviewed publication.
DOI: 10.3535/jfy-vhf-s00
title: Staphisagria macrosperma Spach

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2310625
title: Unambiguous determination of a structural transition in a polar honeycomb antiferromagnet Fe2Mo3O8

description: Multiferroicity is an exciting phenomenon applicable in novel devices; when both time-reversal and inversion symmetries are broken, the electric polarisation and the magnetisation can be controlled interchangeably. The practical challenge is finding and understanding materials showing a stronger magnetoelectricity at a higher temperature. In this regard, we focus on the polar magnet Fe2Mo3O8, where a complex poling procedure is unnecessary as the inversion symmetry is already broken. We aim to solve the nuclear structure in the magnetically-ordered phase by using single-crystal neutron diffraction, which will be crucial to understand the magnetoelectric origin.
DOI: 10.5286/isis.e.rb2310625-1
title: Unambiguous determination of a structural transition in a polar honeycomb antiferromagnet Fe2Mo3O8

description: Multiferroicity is an exciting phenomenon applicable in novel devices; when both time-reversal and inversion symmetries are broken, the electric polarisation and the magnetisation can be controlled interchangeably. The practical challenge is finding and understanding materials showing a stronger magnetoelectricity at a higher temperature. In this regard, we focus on the polar magnet Fe2Mo3O8, where a complex poling procedure is unnecessary as the inversion symmetry is already broken. We aim to solve the nuclear structure in the magnetically-ordered phase by using single-crystal neutron diffraction, which will be crucial to understand the magnetoelectric origin.
DOI: 10.5286/isis.e.rb2320091-1
title: Identification of Dirac-like spinons in the S=1/2 Kagome antiferromagnet YCu3[OD]6.5Br2.5

description: One of the most sought-after many-body phenomena in quantum magnets is quantum spin liquids (QSLs) as they realize a long-range entangled spin state that negates the standard symmetry-breaking paradigm. An S=1/2 Kagome Heisenberg antiferromagnet (KHA) - a two-dimensional lattice formed by corner-sharing triangles is proposed for a paradigmatic setting for achieving QSLs. We propose the inelastic neutron scattering study of the Dirac quantum spin liquid candidate YCu3(OD)6+xBr3-x (abbreviated as YCODB). YCODB shows no magnetic ordering or freezing down to 50 mK and exhibits a nearly quadratic T dependence of specific heat, reminiscent of a Dirac-like QSL. Singularly, the highly sought-after 1/9 magnetization plateau has been observed for the first time in this compound, highlighting its importance in the research of kagome physics.
DOI: 10.3535/8hc-f5c-ygb
title: Adonis annua var. cupaniana (Guss.) W. T. Wang

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/dx2-ygx-3fc
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.rb2220529
title: High Energy Dispersive Spin Waves in the Magnetostrictive Mixed Site Spinel CoFe2O4
DOI: 10.5286/isis.e.rb2220529-1
title: High Energy Dispersive Spin Waves in the Magnetostrictive Mixed Site Spinel CoFe2O4
DOI: 10.5286/isis.e.rb2320091
title: Identification of Dirac-like spinons in the S=1/2 Kagome antiferromagnet YCu3[OD]6.5Br2.5

description: One of the most sought-after many-body phenomena in quantum magnets is quantum spin liquids (QSLs) as they realize a long-range entangled spin state that negates the standard symmetry-breaking paradigm. An S=1/2 Kagome Heisenberg antiferromagnet (KHA) - a two-dimensional lattice formed by corner-sharing triangles is proposed for a paradigmatic setting for achieving QSLs. We propose the inelastic neutron scattering study of the Dirac quantum spin liquid candidate YCu3(OD)6+xBr3-x (abbreviated as YCODB). YCODB shows no magnetic ordering or freezing down to 50 mK and exhibits a nearly quadratic T dependence of specific heat, reminiscent of a Dirac-like QSL. Singularly, the highly sought-after 1/9 magnetization plateau has been observed for the first time in this compound, highlighting its importance in the research of kagome physics.
DOI: 10.3535/bpv-1wz-7bn
title: Staphisagria macrosperma Spach

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/mct-ccf-sp2
title: Delphinium halteratum Sm.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2220011-4
title: The effects of CaO/SrO substitution in bioactive glasses: a combined structural and dynamical study
DOI: 10.5286/isis.e.rb2310466
title: Structure-property relationships in A3OhTd2O7.5+x ionic conductors

description: Materials displaying high ionic conductivity are vital components in many important energy-related technologies, including oxygen pumps, sensors, batteries, and fuel cells. Pure ionic conductors are required as electrolytes, and mixed ionic and electronic conductors are required as electrode materials. In the area of solid oxide fuel cells (SOFC) there is a need for pure oxide conductors which operate at significantly lower temperature than current materials, while mixed ionic (O2 /H+) and rare triple (O2-/H+/e-) conductors offer alternatives to traditional SOFC technologies.
In this proposal we request 4 days on HRPD to investigate oxide ion conductors in the A3OhTd2O7.5+x structural family. We plan to determine the structures of Sr3YGa2O7.5 and its Zn-doped oxygen-deficient analogues at ambient temperature, the structure of Ba1.5Sr1.5YGa2O7.5 at high temperature and the structures of a series of Ba1.5Sr1.5YGa2-xZnxO7.5 x/2 (x = 0.10, 0.20, 0.40) materials at room temperature.
DOI: 10.5286/isis.e.rb2310466-1
title: Structure-property relationships in A3OhTd2O7.5+x ionic conductors

description: Materials displaying high ionic conductivity are vital components in many important energy-related technologies, including oxygen pumps, sensors, batteries, and fuel cells. Pure ionic conductors are required as electrolytes, and mixed ionic and electronic conductors are required as electrode materials. In the area of solid oxide fuel cells (SOFC) there is a need for pure oxide conductors which operate at significantly lower temperature than current materials, while mixed ionic (O2 /H+) and rare triple (O2-/H+/e-) conductors offer alternatives to traditional SOFC technologies.
In this proposal we request 4 days on HRPD to investigate oxide ion conductors in the A3OhTd2O7.5+x structural family. We plan to determine the structures of Sr3YGa2O7.5 and its Zn-doped oxygen-deficient analogues at ambient temperature, the structure of Ba1.5Sr1.5YGa2O7.5 at high temperature and the structures of a series of Ba1.5Sr1.5YGa2-xZnxO7.5 x/2 (x = 0.10, 0.20, 0.40) materials at room temperature.
DOI: 10.3535/0q5-43w-ctn
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: 10.3535/y80-tr4-pxg
title: Orchis militaris L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2200373
title: Controlling the entangled F–μ–F state using pulsed RF excitation

description: In a conventional μSR experiment, there is no control of the interactions and hence the positron asymmetry data are passively recorded in order to infer the muon’s interaction with its local environment. The present proposal is aimed at launching an experimental programme to directly control muon-coupled spin systems. The first step is to establish that RF excitation applied to muons implanted in single-crystal, oriented CaF2 can be used to control the entangled spin states of the muon-coupled spin system. CaF2 is deliberately chosen because the nuclear spins on the Ca2+ ions can be ignored and the muon cleanly couples to the network of fluorine ions in a well-defined manner.
DOI: 10.5286/isis.e.rb2200373-2
title: Controlling the entangled F–μ–F state using pulsed RF excitation

description: In a conventional μSR experiment, there is no control of the interactions and hence the positron asymmetry data are passively recorded in order to infer the muon’s interaction with its local environment. The present proposal is aimed at launching an experimental programme to directly control muon-coupled spin systems. The first step is to establish that RF excitation applied to muons implanted in single-crystal, oriented CaF2 can be used to control the entangled spin states of the muon-coupled spin system. CaF2 is deliberately chosen because the nuclear spins on the Ca2+ ions can be ignored and the muon cleanly couples to the network of fluorine ions in a well-defined manner.
DOI: 10.5286/isis.e.rb2310590
title: Spin-orbit excitons and magnetostriction in Fe2TiO4

description: We propose to measure the magnetic excitations in the spinel Fe2TiO4 with the goal of understanding the single-ion and interacting terms in the magnetic Hamiltonian. This compound is highly magnetostrictive relating to an orbital degree of freedom on the Fe2+ site. We aim to experimental map out the excitations and model this ground state using a mutlilevel spin-wave formalism. The proposal requires the use of Merlin given the mult rep capability allowing several dynamic ranges to be probed at the same time.
DOI: 10.5286/isis.e.rb2310590-1
title: Spin-orbit excitons and magnetostriction in Fe2TiO4

description: We propose to measure the magnetic excitations in the spinel Fe2TiO4 with the goal of understanding the single-ion and interacting terms in the magnetic Hamiltonian. This compound is highly magnetostrictive relating to an orbital degree of freedom on the Fe2+ site. We aim to experimental map out the excitations and model this ground state using a mutlilevel spin-wave formalism. The proposal requires the use of Merlin given the mult rep capability allowing several dynamic ranges to be probed at the same time.
DOI: 10.3535/4gr-3he-mmr
title: Staphisagria macrosperma Spach

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/btn-enf-n4e
title: Staphisagria macrosperma Spach

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2320008-1
title: Struture in temperature-insensitive microemulsions

description: The extreme temperature (T) and pressure (P) conditions found in modern internal combustion engines (ICEs) complicate studies of surfactants and additives in lubrication oils, since accessing these conditions is experimentally challenging. As widely reported in literature (1-7), surfactant systems form stable microemulsions that can be de-stabilised by changing factors, such as T, P, composition, or salinity. Previous research shows that by mixing non-ionic and anionic surfactants it is possible to reduce the T-sensitivity of microemulsions (8-11). The goal is to expand T-sensitivity studies as a means of overcoming the effects of T and P for reversed micelle (RM) and microemulsion (ME) systems, particularly for the harsh conditions found in ICEs. The results will improve understanding about surfactant synergism at oil-water interfaces, and also provide input data for Molecular Dynamics (MD) simulations in collaboration with Prof P. Camp (Edinburgh). Ilona Serafin is a final year PhD student, fully funded by Infineum