cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.3535/s0b-rfz-9qx
title: Nicotiana rustica L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2220688-3
title: Reactivity of UO2-NPs with H2 as models of spent nuclear fuel

description: In order to determine the safest means of storage of spent nuclear fuel, any reactions occurring over the material whilst in storage must be determined. If any water is adsorbed on nuclear waste materials in sealed cans, radiolysis can yield H2. The onward reactivity of any H2 must therefore be determined, to provide an evidence-based and cost-effective safety case for the long-term storage of spent nuclear fuel. We propose here to investigate the vibrational spectra of surface bound hydrogen containing adsorbates on a range of uranium containing materials as high surface area models for spent nuclear fuel.
DOI: 10.5286/isis.e.rb2510629
title: DYNAMICS OF IONIC LIQUIDS AT THE PHASE TRANSITIONS BY SIMULTANEOUS QENS AND DSC MEASUREMENTS

description: Ionic liquids (ILs) attract wide attention due to their unique properties distinguishing them from all other liquids, enormous variety of available ILs, and tunability of their physical and chemical properties and response to specific stimuli. The IL dynamics is complex due to their sophisticates self-assembled structure resulting from a delicate balance between various interactions. Many ILs undergo complex phase transitions (crystal-crystal, melting-crystallization or glass transition) at operation temperatures. Quasielastic neutron scattering (QENS) combined with a direct following of the phase transitions by differential scanning calorimetry (DSC) is a unique method to resolve the relation between the IL dynamics and nanostructure. Simultaneous QENS and DSC experiments have just become available at IRIS spectrometer, and our aim consists of using these techniques to investigate the molecular motions in three bulk ILs of different molecular structure, undergoing melting, crystal-crystal, or glass transitions. To aid the data analysis and correlate the dynamics with structure, we aim to use I11 X-Ray diffraction beamline at Diamond.
DOI: 10.5286/isis.e.rb2510629-1
title: DYNAMICS OF IONIC LIQUIDS AT THE PHASE TRANSITIONS BY SIMULTANEOUS QENS AND DSC MEASUREMENTS

description: Ionic liquids (ILs) attract wide attention due to their unique properties distinguishing them from all other liquids, enormous variety of available ILs, and tunability of their physical and chemical properties and response to specific stimuli. The IL dynamics is complex due to their sophisticates self-assembled structure resulting from a delicate balance between various interactions. Many ILs undergo complex phase transitions (crystal-crystal, melting-crystallization or glass transition) at operation temperatures. Quasielastic neutron scattering (QENS) combined with a direct following of the phase transitions by differential scanning calorimetry (DSC) is a unique method to resolve the relation between the IL dynamics and nanostructure. Simultaneous QENS and DSC experiments have just become available at IRIS spectrometer, and our aim consists of using these techniques to investigate the molecular motions in three bulk ILs of different molecular structure, undergoing melting, crystal-crystal, or glass transitions. To aid the data analysis and correlate the dynamics with structure, we aim to use I11 X-Ray diffraction beamline at Diamond.
DOI: 10.3535/06m-02h-geq
title: Lysimachia vulgaris L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/ksg-6s4-3lw
title: Myosotis ramosissima Rochel

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2510505
title: Probing pressure-Induced Structural and Conductivity Changes in Li6.5La3Nb0.5Zr1.5O12 (c-LLZO) Garnet Electrolytes

description: The garnet-type solid electrolyte Li6.5La3Nb0.5Zr1.5O12 (c-LLZO) is widely regarded as one of the most promising candidate SICs due to its high ionic conductivity (~10^-3 S/cm) and low electronic conductivity (σe &lt; 10-8 S/cm) at room temperature, good mechanical strength and electrochemical stability. While temperature effects on c-LLZO’s ionic transport have been extensively studied, the role of pressure as a thermodynamic parameter has been explored less. This study aims to elucidate the effect of pressure on Li-ion transport mechanisms using high-pressure neutron diffraction. In combination with existing studies of electrochemical impedance spectroscopy (EIS) and Raman spectroscopy, our investigation will probe correlations between pressure-induced structural changes and ionic conductivity, providing insights crucial to optimizing c-LLZO-based solid electrolytes for enhanced battery performance.
DOI: 10.5286/isis.e.rb2510505-1
title: Probing pressure-Induced Structural and Conductivity Changes in Li6.5La3Nb0.5Zr1.5O12 (c-LLZO) Garnet Electrolytes

description: The garnet-type solid electrolyte Li6.5La3Nb0.5Zr1.5O12 (c-LLZO) is widely regarded as one of the most promising candidate SICs due to its high ionic conductivity (~10^-3 S/cm) and low electronic conductivity (σe &lt; 10-8 S/cm) at room temperature, good mechanical strength and electrochemical stability. While temperature effects on c-LLZO’s ionic transport have been extensively studied, the role of pressure as a thermodynamic parameter has been explored less. This study aims to elucidate the effect of pressure on Li-ion transport mechanisms using high-pressure neutron diffraction. In combination with existing studies of electrochemical impedance spectroscopy (EIS) and Raman spectroscopy, our investigation will probe correlations between pressure-induced structural changes and ionic conductivity, providing insights crucial to optimizing c-LLZO-based solid electrolytes for enhanced battery performance.
DOI: 10.5286/isis.e.rb2510643-1
title: In-situ neutron reflectivity study of the liquid-aerosol interfacial polymerization for polyamide film formation

description: Polyamides form a class of polymers with exceptional performance for a wide range of functional applications, especially in water filtration membrane technology. Fully aromatic polyamides that have excellent high-temperature stability combined with tuneable physical and chemical properties are increasingly used for a range of industrial applications. The conventional interfacial polymerisation at the liquid/liquid interface is widely used in nowadays' applications, however, this process necessitates large quantities of organic hexane solvents and monomers, which are not easily recoverable without additional treatment, leading to substantial chemical waste, increased costs, and environmental impact. In this work, we will investigate interfacial polymerisation at the liquid/aerosol interface, not just by spraying hexane and TMC aerosol onto the surface of water and MPD, but also by reversing the process, spraying water and MPD aerosol onto the surface of hexane and TMC at relatively low densities. By studying the kinetics of polyamide thin-film membrane formation, the findings will help us uncover the fundamental formation mechanisms, with the goal of enhancing the design of high-performance membranes.
DOI: 10.3535/4ey-p3q-hrg
title: Primula veris subsp. veris

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/gb5-4b8-gxl
title: Lysimachia thyrsiflora L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2420029
title: Neutron Diffraction study of a frustrated garnet compound Mn3CrGaGe3O12

description: In our recent work, we reported a detailed study of a frustrated garnet compound Mn3Cr2Ge3O12, where the Cr3+ and Mn2+ sub-lattices order independently at TN1 ≃ 4.6 K and TN2 ≃ 2.7 K, respectively. However, the interaction between the sub-lattices was not understood very well. In order to have a better understanding of the spin-lattice, we diluted the Cr site by non-magnetic Ga (Mn3CrGaGe3O12) assuming that it will impact both the orderings as well as the inter-sublattice interactions. From the magnetization and heat capacity data, it is clearly evident that Mn3CrGaGe3O12 has two transitions at TN1 ≃ 3.9 K and TN2 ≃ 1.8 K similar to Mn3Cr2Ge3O12. In a magnetic field of about 1 T, TN2 is completely suppressed while TN1 almost remains unperturbed even at 8 T. This behaviour is completely opposite to that observed in Mn3Cr2Ge3O12 where TN1 is completely suppressed at 1 T while TN2 remains unchanged even at 9 T. Hence, it is interesting to see which transition is affected due to non-magnetic substitution at the Cr3+ site and how the inter-sublattice interactions play the role in stabilizing the ground state and the field induced states. In order to have a clear understanding of the ground state and magnetic interactions in this compound, we propose to do powder neutron diffraction experiments in zero-field at several temperatures below and above TN1 and TN2 in WISH spectrometer.
DOI: 10.5286/isis.e.rb2420029-1
title: Neutron Diffraction study of a frustrated garnet compound Mn3CrGaGe3O12

description: In our recent work, we reported a detailed study of a frustrated garnet compound Mn3Cr2Ge3O12, where the Cr3+ and Mn2+ sub-lattices order independently at TN1 ≃ 4.6 K and TN2 ≃ 2.7 K, respectively. However, the interaction between the sub-lattices was not understood very well. In order to have a better understanding of the spin-lattice, we diluted the Cr site by non-magnetic Ga (Mn3CrGaGe3O12) assuming that it will impact both the orderings as well as the inter-sublattice interactions. From the magnetization and heat capacity data, it is clearly evident that Mn3CrGaGe3O12 has two transitions at TN1 ≃ 3.9 K and TN2 ≃ 1.8 K similar to Mn3Cr2Ge3O12. In a magnetic field of about 1 T, TN2 is completely suppressed while TN1 almost remains unperturbed even at 8 T. This behaviour is completely opposite to that observed in Mn3Cr2Ge3O12 where TN1 is completely suppressed at 1 T while TN2 remains unchanged even at 9 T. Hence, it is interesting to see which transition is affected due to non-magnetic substitution at the Cr3+ site and how the inter-sublattice interactions play the role in stabilizing the ground state and the field induced states. In order to have a clear understanding of the ground state and magnetic interactions in this compound, we propose to do powder neutron diffraction experiments in zero-field at several temperatures below and above TN1 and TN2 in WISH spectrometer.
DOI: 10.5286/isis.e.rb2510643
title: In-situ neutron reflectivity study of the liquid-aerosol interfacial polymerization for polyamide film formation

description: Polyamides form a class of polymers with exceptional performance for a wide range of functional applications, especially in water filtration membrane technology. Fully aromatic polyamides that have excellent high-temperature stability combined with tuneable physical and chemical properties are increasingly used for a range of industrial applications. The conventional interfacial polymerisation at the liquid/liquid interface is widely used in nowadays' applications, however, this process necessitates large quantities of organic hexane solvents and monomers, which are not easily recoverable without additional treatment, leading to substantial chemical waste, increased costs, and environmental impact. In this work, we will investigate interfacial polymerisation at the liquid/aerosol interface, not just by spraying hexane and TMC aerosol onto the surface of water and MPD, but also by reversing the process, spraying water and MPD aerosol onto the surface of hexane and TMC at relatively low densities. By studying the kinetics of polyamide thin-film membrane formation, the findings will help us uncover the fundamental formation mechanisms, with the goal of enhancing the design of high-performance membranes.
DOI: 10.3535/47v-1pm-v56
title: Myosotis sylvatica Ehrh. ex Hoffm.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/zml-e14-m0s
title: Paris quadrifolia L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2510474
title: Frustrated Lewis pairs in ionic liquids – the first operando experiment!

description: Main group catalysis, largely centred around Lewis acidic boranes, is rapidly gaining attention in the area of frustrated Lewis pairs (FLPs). FLPs are a combination of a Lewis acid and a Lewis base (e.g. borane/phosphine), prevented from forming an adduct by steric hindrance. In a solvent, the acid and the base remain partly associated in a weakly bound encounter complex, in which the HOMO orbital of the base and the LUMO orbital of an acid remain free. This allows for transition metal-like reactivity of FLPs, including metal-free activation of H2 (Fig. 1) CO2, N2, and other small molecules. Our previous work (RB1710311) provided the first experimental evidence that these encounter complexes exist at a significant concentration that could be observed by neutron scattering: from all FLP components, 0.7% were found to be present as direct-contact pairs, and 5% as solvent-separated pairs. Subsequently, FLPs in ionic liquids (ILs) were studied (RB1710311, RB1810465). Advantages of ILs include non-volatility (a much more practical system when working with gases) and increased concentration of encounter complexes. Building on this, we plan to measure FLP/IL systems immobilised in pores, in preparation for operando hydrogenation studies (December 2024, RB2420443). Here, we apply for beamtime for a follow-up experiment, where hydrogen gas is passed through the sample, to observe - for the first time - in operando hydrogen splitting by FLPs in ionic liquids.
DOI: 10.5286/isis.e.rb2510474-1
title: Frustrated Lewis pairs in ionic liquids – the first operando experiment!

description: Main group catalysis, largely centred around Lewis acidic boranes, is rapidly gaining attention in the area of frustrated Lewis pairs (FLPs). FLPs are a combination of a Lewis acid and a Lewis base (e.g. borane/phosphine), prevented from forming an adduct by steric hindrance. In a solvent, the acid and the base remain partly associated in a weakly bound encounter complex, in which the HOMO orbital of the base and the LUMO orbital of an acid remain free. This allows for transition metal-like reactivity of FLPs, including metal-free activation of H2 (Fig. 1) CO2, N2, and other small molecules. Our previous work (RB1710311) provided the first experimental evidence that these encounter complexes exist at a significant concentration that could be observed by neutron scattering: from all FLP components, 0.7% were found to be present as direct-contact pairs, and 5% as solvent-separated pairs. Subsequently, FLPs in ionic liquids (ILs) were studied (RB1710311, RB1810465). Advantages of ILs include non-volatility (a much more practical system when working with gases) and increased concentration of encounter complexes. Building on this, we plan to measure FLP/IL systems immobilised in pores, in preparation for operando hydrogenation studies (December 2024, RB2420443). Here, we apply for beamtime for a follow-up experiment, where hydrogen gas is passed through the sample, to observe - for the first time - in operando hydrogen splitting by FLPs in ionic liquids.
DOI: 10.5286/isis.e.rb2510555-1
title: Optimising the Perpendicular Magnetic Anisotropy of Topological Insulator/Magnetic Multilayer Heterostructures through Buffer Layer Tuning

description: Exploiting topology in quantum matter offers unique possibilities to engineer materials at the nanoscale that can have transformative potential. Recognised in the 2016 Nobel prize for physics, topology is central to a number of contemporary topics in condensed matter physics. Here we combine two classes: topological insulators (TIs) and topologically protected skyrmions to search for an energy efficient method for computation and storage. This hybrid system has the potential to move information carrying skyrmions in a highly efficient manner as a result of the giant spin-orbit torques present in the system arising from the spin-momentum locked surface states in the TI. In this work we wish to understand the nanoscale magnetic structure in this system, in particular the interface between the TI and metallic multilayer and relate this to its functionality . We will combine the results with x-ray imaging and conventional magnetometry.
DOI: 10.3535/nb4-g1w-lfl
title: Genista tinctoria L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/s2s-gxk-nqc
title: Lysimachia nummularia L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2510116
title: Neutron scattering in metal halide perovskites

description: Halide perovskites (HPs) have attracted attention for their excellent performance in optoelectronic applications such as solar cells, light-emitting devices (LEDs), and photodetectors. This is mainly due to their strong electron-phonon coupling (EPC). Low-dimensional HPs typically change the crystal lattice, improving carrier diffusion length properties, reducing electron-hole recombination, and increasing EPC. Furthermore, strong EPC in these materials may lead to the creation of self-trapped excitons (STEs), which emit broad luminescence across multiple wavelengths. The low-dimensional perovskites Cs₂SnBr₆ and CsPb₂Br₅ are particularly promising for LEDs due to their high photoluminescence quantum yield (PLQY) and broad emission spectrum. However, the phonon scattering mechanisms in these materials are not yet fully understood, and conventional spectroscopic techniques offer limited insights. Inelastic Neutron Scattering (INS) provides a powerful method to probe phonon dispersion and EPC mechanisms, offering critical insights into optimizing these materials in energy harvesting and optoelectronic applications. This research promises to bridge significant knowledge gaps and drive advancements in the design of next-generation perovskite-based state-of-the-art technologies.
DOI: 10.5286/isis.e.rb2510116-1
title: Neutron scattering in metal halide perovskites

description: Halide perovskites (HPs) have attracted attention for their excellent performance in optoelectronic applications such as solar cells, light-emitting devices (LEDs), and photodetectors. This is mainly due to their strong electron-phonon coupling (EPC). Low-dimensional HPs typically change the crystal lattice, improving carrier diffusion length properties, reducing electron-hole recombination, and increasing EPC. Furthermore, strong EPC in these materials may lead to the creation of self-trapped excitons (STEs), which emit broad luminescence across multiple wavelengths. The low-dimensional perovskites Cs₂SnBr₆ and CsPb₂Br₅ are particularly promising for LEDs due to their high photoluminescence quantum yield (PLQY) and broad emission spectrum. However, the phonon scattering mechanisms in these materials are not yet fully understood, and conventional spectroscopic techniques offer limited insights. Inelastic Neutron Scattering (INS) provides a powerful method to probe phonon dispersion and EPC mechanisms, offering critical insights into optimizing these materials in energy harvesting and optoelectronic applications. This research promises to bridge significant knowledge gaps and drive advancements in the design of next-generation perovskite-based state-of-the-art technologies.
DOI: 10.5286/isis.e.rb2510555
title: Optimising the Perpendicular Magnetic Anisotropy of Topological Insulator/Magnetic Multilayer Heterostructures through Buffer Layer Tuning

description: Exploiting topology in quantum matter offers unique possibilities to engineer materials at the nanoscale that can have transformative potential. Recognised in the 2016 Nobel prize for physics, topology is central to a number of contemporary topics in condensed matter physics. Here we combine two classes: topological insulators (TIs) and topologically protected skyrmions to search for an energy efficient method for computation and storage. This hybrid system has the potential to move information carrying skyrmions in a highly efficient manner as a result of the giant spin-orbit torques present in the system arising from the spin-momentum locked surface states in the TI. In this work we wish to understand the nanoscale magnetic structure in this system, in particular the interface between the TI and metallic multilayer and relate this to its functionality . We will combine the results with x-ray imaging and conventional magnetometry.
DOI: 10.3535/crj-1be-6vz
title: Lysimachia vulgaris L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/tfh-lwd-xj5
title: Anacamptis morio (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.rb2320303
title: Field tuning between magnons and excitation continua in a quantum Ising-like triangular antiferromagnet

description: This proposal is for a continuation experiment on an Ising-like spin-1/2 triangular antiferromagnet where in recent LET measurements we observed a dominant excitation continuum in zero field co-existing with magnetic order Bragg peaks. This is a very surprising result as it suggests anomalously strong quantum fluctuations leading to magnon decay over most of the Brillouin zone. This is in strong contrast to the easy-plane case, where experiments observed sharp magnons throughout reciprocal space with no decay. To understand the origin of the excitation continuum in zero field, whether it is due to magnon decay into multi-magnon continua or more exotic scenarios of magnon fractionalization, we propose to measure how the spectrum evolves into the zero-field continuum starting from the high-field polarized phase, where we have observed sharp, resolution-limited magnons that close gap upon lowering field resulting in magnetic order.
DOI: 10.5286/isis.e.rb2320303-1
title: Field tuning between magnons and excitation continua in a quantum Ising-like triangular antiferromagnet

description: This proposal is for a continuation experiment on an Ising-like spin-1/2 triangular antiferromagnet where in recent LET measurements we observed a dominant excitation continuum in zero field co-existing with magnetic order Bragg peaks. This is a very surprising result as it suggests anomalously strong quantum fluctuations leading to magnon decay over most of the Brillouin zone. This is in strong contrast to the easy-plane case, where experiments observed sharp magnons throughout reciprocal space with no decay. To understand the origin of the excitation continuum in zero field, whether it is due to magnon decay into multi-magnon continua or more exotic scenarios of magnon fractionalization, we propose to measure how the spectrum evolves into the zero-field continuum starting from the high-field polarized phase, where we have observed sharp, resolution-limited magnons that close gap upon lowering field resulting in magnetic order.
DOI: 10.5286/isis.e.rb2490287-1
title: Transition Metal Vacancies in Cathodes of Batteries: Benefit or Detriment?
DOI: 10.15468/dl.p63x5t
title: Occurrence Download

description: A dataset containing 22 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Rosa glauca Pourr.",
 "Country is Latvia",
 "HasCoordinate is true"
 ]
}

 The dataset includes 22 records from 3 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0109299-250525065834625/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.3535/qqq-ytk-erv
title: Ranunculus flammula L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.