cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.3535/xzc-nns-dtb
title: Bonellia fruticulosa Lepper & J. E. Gut.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2220095
title: Investigation of the Phonon Dynamics in Substituted Chalcopyrites
DOI: 10.5286/isis.e.rb2220095-1
title: Investigation of the Phonon Dynamics in Substituted Chalcopyrites
DOI: 10.5286/isis.e.rb2220457-2
title: INS vibrational spectroscopy of surface species relevant to the partial oxidation of methane
DOI: 10.3535/ep3-7yj-y27
title: Solidago chilensis Meyen

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/tc6-aq4-ch6
title: Portulaca peteri Poelln.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2220457
title: INS vibrational spectroscopy of surface species relevant to the partial oxidation of methane
DOI: 10.5286/isis.e.rb2320066
title: Magnetic excitations of spin-orbital coupled Ir-Ir dimers in Ba3XIr2O9, X = Y or Sc

description: Studies of iridium-based compounds are at the forefront of solid state physics research. In these materials the electronic configurations are driven by strong spin-orbit coupling (SOC). We are currently investigating the spin frustration in an ambient pressure phase of Ba3YIr2O9 (Ir4.5+), using various experimental techniques, where one lone electron is shared over a structural Ir dimer, and a small magnetic moment order occurs for frustrated antiferromagnetic interactions on a hexagonal lattice. In Ba3YIr2O9 our zero-field muon spin rotation study reveals evidence of a long range magnetic ordering below 4 K, in agreement with heat capacity. Here we proposal to investigate the low energy magnetic excitations spectrum of Ba3YIr2O9 and Ba3ScIr2O9 using LET. Where in Ba3ScIr2O9 the effect of small scale Sc-Ir site disorder, TC = 9 K, will be investigated. This study will provide information on the intra-dimer and inter-dimer interactions as well as the effect of SOC on the spin gap, hence allowing modelling the spin-Hamiltonian of Ba3YIr2O9 and Ba3ScIr2O9. We have also submitted a neutron diffraction proposal on WISH to investigate the magnetic structure of Ba3YIr2O9, and Ba3ScIr2O9.
DOI: 10.5286/isis.e.rb2320066-1
title: Magnetic excitations of spin-orbital coupled Ir-Ir dimers in Ba3XIr2O9, X = Y or Sc

description: Studies of iridium-based compounds are at the forefront of solid state physics research. In these materials the electronic configurations are driven by strong spin-orbit coupling (SOC). We are currently investigating the spin frustration in an ambient pressure phase of Ba3YIr2O9 (Ir4.5+), using various experimental techniques, where one lone electron is shared over a structural Ir dimer, and a small magnetic moment order occurs for frustrated antiferromagnetic interactions on a hexagonal lattice. In Ba3YIr2O9 our zero-field muon spin rotation study reveals evidence of a long range magnetic ordering below 4 K, in agreement with heat capacity. Here we proposal to investigate the low energy magnetic excitations spectrum of Ba3YIr2O9 and Ba3ScIr2O9 using LET. Where in Ba3ScIr2O9 the effect of small scale Sc-Ir site disorder, TC = 9 K, will be investigated. This study will provide information on the intra-dimer and inter-dimer interactions as well as the effect of SOC on the spin gap, hence allowing modelling the spin-Hamiltonian of Ba3YIr2O9 and Ba3ScIr2O9. We have also submitted a neutron diffraction proposal on WISH to investigate the magnetic structure of Ba3YIr2O9, and Ba3ScIr2O9.
DOI: 10.3535/evl-kmw-3br
title: Ovidia pillo-pillo (Gay) Hohen. ex Meisn.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/msa-61f-6xq
title: Verrucaria

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2220566
title: Unravelling the origin of the spontaneuous magnetostructural phase transition in magnetolectric TbPO4
DOI: 10.5286/isis.e.rb2220566-1
title: Unravelling the origin of the spontaneuous magnetostructural phase transition in magnetolectric TbPO4
DOI: 10.5286/isis.e.rb2310055-1
title: Exploring Spin Dynamics in a MOF S = 1/2 Kagome Antiferromagnet

description: An outstanding challenge in modern-day materials research is the unambiguous experimental realisation of a quantum spin liquid. From a theoretical perspective, an ideal host in which to explore quantum spin liquid physics is the S = ½ kagome antiferromagnet. Experimentally, realisations of this model have been explored extensively in inorganic mineral materials whose structures contain kagome arrays of Cu(II) S = ½ ions. However, a key challenge in these materials is the presence of site disorder, which obstructs the experimental characterisation of their intrinsic magnetic ground states. Here we present the metal-organic framework Cu3(C6O6)2 as an extremely promising new quantum spin liquid candidate, based on its structure of two-dimensional S = 1/2 kagome layers that are free from site disorder. We propose to explore its magnetic ground state and spin dynamics through muon spin spectroscopy.
DOI: 10.3535/be4-qq1-mz3
title: Polygala L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/pr9-4mk-1ee
title: Aralia L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2310055
title: Exploring Spin Dynamics in a MOF S = 1/2 Kagome Antiferromagnet

description: An outstanding challenge in modern-day materials research is the unambiguous experimental realisation of a quantum spin liquid. From a theoretical perspective, an ideal host in which to explore quantum spin liquid physics is the S = ½ kagome antiferromagnet. Experimentally, realisations of this model have been explored extensively in inorganic mineral materials whose structures contain kagome arrays of Cu(II) S = ½ ions. However, a key challenge in these materials is the presence of site disorder, which obstructs the experimental characterisation of their intrinsic magnetic ground states. Here we present the metal-organic framework Cu3(C6O6)2 as an extremely promising new quantum spin liquid candidate, based on its structure of two-dimensional S = 1/2 kagome layers that are free from site disorder. We propose to explore its magnetic ground state and spin dynamics through muon spin spectroscopy.
DOI: 10.5286/isis.e.rb2390002
title: Feasibility study - Mechanical testing of nuclear graphite at IMAT
DOI: 10.5286/isis.e.rb2390002-1
title: Feasibility study - Mechanical testing of nuclear graphite at IMAT
DOI: 10.3535/1md-zs1-q2l
title: Buddleja globosa Hope

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2010451
title: In situ study of the micro-mechanical properties of MAX-phases at elevated temperatures

description: MAX phases, a relatively new class of layered ternary carbides and nitrides, have attracted increasing interest in aerospace, nuclear fission & fusion due to their unique properties combining the merits of both ceramics and metals. For example, they have a good corrosion and irradiation resistance, thermal stability, high strength and exceptional fracture toughness for ceramic compounds. To better design and evaluate their performance, we have to understand the correlation between crystal and macro-behaviour as many phenomena such as kink band formation and grain boundary slip are temperature dependent. In this project, we will combine diffraction and digital image correlation to gain insights to the micro-mechanical behaviour of a MAX phase sample from RT to 1000°C. This is the first experiment for our ISIS-Bristol student and will provide key results for her future work on modelling.
DOI: 10.5286/isis.e.rb2010451-2
title: In situ study of the micro-mechanical properties of MAX-phases at elevated temperatures
DOI: 10.5286/isis.e.rb2310035-2
title: On the labyrinthine crystal chemistry of the hydrous borate MgB3O3(OH)5•5H2O (inderite)

description: Boron is a strategic element for a series of technologically and industrially relevant processes and products, from eye drops to fertilisers. For its neutron-absorbing properties, 10B is also used in the production of radiation-shielding building materials, in particular B-bearing Portland cements, relevant for applications in nuclear medicine and nuclear power plants. However, the most used natural borates (i.e., borax) have proved to induce a negative effect on setting and hardening (with an anomalous extension of the cement hydration period), coupled with a lowering of durability of concretes (due to the high Na-content). We are investigating the chemical stability and high-T/high-P crystal-chemistry of inderite [ideally MgB3O3(OH)5•5H2O], which contains 37 wt% B2O3 and 48 wt% H2O, with a multi-methodological approach: a SC neutron diffraction experiment is necessary to obtain a full structural model of inderite, with an unambiguous location of all the H sites (presumably 15 crystallographically independent H sites into the structure) and the description of the complex H-bonding network.
DOI: 10.3535/1fc-vak-g8h
title: Hybanthus Jacq.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/w0v-vcy-ec6
title: Verrucaria

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2220735
title: Investigation of crystal field excitations to understand anisotropic behavior in Ce based heavy fermions CeTAl4Si2 (T = Rh, Ir, and Pt)
DOI: 10.5286/isis.e.rb2220735-1
title: Investigation of crystal field excitations to understand anisotropic behavior in Ce based heavy fermions CeTAl4Si2 (T = Rh, Ir, and Pt)
DOI: 10.5286/isis.e.rb2310035
title: On the labyrinthine crystal chemistry of the hydrous borate MgB3O3(OH)5•5H2O (inderite)

description: Boron is a strategic element for a series of technologically and industrially relevant processes and products, from eye drops to fertilisers. For its neutron-absorbing properties, 10B is also used in the production of radiation-shielding building materials, in particular B-bearing Portland cements, relevant for applications in nuclear medicine and nuclear power plants. However, the most used natural borates (i.e., borax) have proved to induce a negative effect on setting and hardening (with an anomalous extension of the cement hydration period), coupled with a lowering of durability of concretes (due to the high Na-content). We are investigating the chemical stability and high-T/high-P crystal-chemistry of inderite [ideally MgB3O3(OH)5•5H2O], which contains 37 wt% B2O3 and 48 wt% H2O, with a multi-methodological approach: a SC neutron diffraction experiment is necessary to obtain a full structural model of inderite, with an unambiguous location of all the H sites (presumably 15 crystallographically independent H sites into the structure) and the description of the complex H-bonding network.
DOI: 10.3535/5jk-1bk-jnb
title: Portulaca fascicularis Peter ex Gilbert & Phillips

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/d9h-al2-8v2
title: Weinmannia trichosperma Cav.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2235009-4
title: HRPD instrument calibration
DOI: 10.5286/isis.e.rb2390013
title: Feasibility study of lithium-ion battery coin cells and pouch cells for neutron imaging
DOI: 10.5286/isis.e.rb2390013-1
title: Feasibility study of lithium-ion battery coin cells and pouch cells for neutron imaging
DOI: 10.3535/x76-3ry-zqh
title: Tropaeolum speciosum Poepp. & Endl.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2310609
title: Understanding multicomponent quantum criticality in CeCu5.8Ag0.2

description: Quantum critical fluctuations are at the origin of a plethora of coherent quantum phases, but their microscopic nature remains unclear even in model materials. One of them is CeCu5.8Ag0.2, featuring multicomponent criticality arising from potentially coupled energy scales associated with spin-density wave (SDW) order and Kondo coherence. Using an external magnetic field as an auxiliary tuning parameter, we here propose to continue our endeavor on LET to clarify the interplay between the different fluctuating order parameters. This is required for a comprehensive microscopic understanding of quantum criticality in the CeCu6-xAgx series.
DOI: 10.5286/isis.e.rb2310609-1
title: Understanding multicomponent quantum criticality in CeCu5.8Ag0.2

description: Quantum critical fluctuations are at the origin of a plethora of coherent quantum phases, but their microscopic nature remains unclear even in model materials. One of them is CeCu5.8Ag0.2, featuring multicomponent criticality arising from potentially coupled energy scales associated with spin-density wave (SDW) order and Kondo coherence. Using an external magnetic field as an auxiliary tuning parameter, we here propose to continue our endeavor on LET to clarify the interplay between the different fluctuating order parameters. This is required for a comprehensive microscopic understanding of quantum criticality in the CeCu6-xAgx series.
DOI: 10.5286/isis.e.rb2390008-1
title: Paramagnetic transition of novel, high performing, cathode material Na2Fe2(SO4)3
DOI: 10.3535/r9a-f79-0f1
title: Portulaca fascicularis Peter ex Gilbert & Phillips

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/rcf-jcr-p4g
title: Ranunculus L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2220390
title: Interactions between mixed-valence Ni ions in stripe ordered La5/3Sr1/3NiO4

description: The aim of the work is to investigate how the spin dynamics in La2–xSrxNiO4 depend on the interaction between Ni3+ and Ni2+ ions in the stripe ordered phase of the compound. The experiments will be conducted on crystals with x = 0.33, where the correlation length for the ordering is longest. Preliminary studies show well-defined spin excitations associated with the stripe periodicity, but a gap at middle energies in the magnon spectrum remains unexplained by a linear spin-wave theory model. We will follow the spin excitations up to the maximum energy ~50 meV in order to measure the gap region in detail.
DOI: 10.5286/isis.e.rb2220390-3
title: Interactions between mixed-valence Ni ions in stripe ordered La5/3Sr1/3NiO4
DOI: 10.5286/isis.e.rb2255003-1
title: Revealing the mechanism(s) of enhanced creep resistance in Cr-doped hard metals
DOI: 10.15468/dl.fghwr3
title: Occurrence Download

description: A dataset containing 10 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Corispermum pallasii Steven",
 "Country is Lithuania",
 "HasCoordinate is true"
 ]
}

 The dataset includes 10 records from 2 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0109230-250525065834625/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.3535/v4t-mbt-9xg
title: Portulaca fascicularis Peter ex Gilbert & Phillips

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/ynh-2fh-f7r
title: Potentilla sublaevis O. Schwarz

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2255003
title: Revealing the mechanism(s) of enhanced creep resistance in Cr-doped hard metals
DOI: 10.5286/isis.e.rb2310250
title: Skyrmion bubble dynamics in NdMn2Ge2

description: Skyrmionic spin configurations, including skyrmions, skyrmion lattices and skyrmionic bubbles, continue to attract much attention. Most skyrmionic spin configurations are observed in transition-metal-based magnets, and we lack examples of rare-earth-based magnets hosting such spin configurations, especially at room temperature. Here we propose measurements on NdMn2Ge2, a centrosymmetric system that hosts high-density hexagonal lattices of skyrmionic bubbles, including at zero applied magnetic field. As part of a project to investigate this system, we will make muon measurements to investigate the skyrmion bubble dynamics following field-cooling protocols.
DOI: 10.5286/isis.e.rb2310250-1
title: Skyrmion bubble dynamics in NdMn2Ge2

description: Skyrmionic spin configurations, including skyrmions, skyrmion lattices and skyrmionic bubbles, continue to attract much attention. Most skyrmionic spin configurations are observed in transition-metal-based magnets, and we lack examples of rare-earth-based magnets hosting such spin configurations, especially at room temperature. Here we propose measurements on NdMn2Ge2, a centrosymmetric system that hosts high-density hexagonal lattices of skyrmionic bubbles, including at zero applied magnetic field. As part of a project to investigate this system, we will make muon measurements to investigate the skyrmion bubble dynamics following field-cooling protocols.
DOI: 10.3535/9tf-rgj-k8f
title: Verbena × goodmanii Moldenke

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/m9l-cle-zf1
title: Euphorbia falcata L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2300002-2
title: Quantum tuning of magnetic phases in vanadium sulphide single crystals

description: Strongly correlated electron systems are known to host a variety of exotic phenomena and novel quantum phases. The transition-metal chalcogenide system, VxS8, is of particular interest, for it displays a wide range of behaviour on changing the stoichiometry, from a charge density wave metal (x=4) to an antiferromagnetic metal (x=5, 6) and even, a paramagnet metal (x=8). Here, we focus on V5S8, where we have observed that magnetic interactions between the vanadium d-electrons lead to an antiferromagnetic phase below 32K. We now propose to use the Wish instrument to explore the rich magnetic phase space available in this compound, by conducting a series of both powder and single-crystal neutron diffraction experiments at both zero and non-zero magnetic fields.
DOI: 10.5286/isis.e.rb2310380
title: Structure and ordering of methyl acetate.

description: Solid methyl acetate is known to occur in interstellar and cometary ices, but details of its crystal structure at low temperature remain ambiguous. In the only published diffraction study, by Barrow et al. (1981), the structure at 145 K was determined from a single crystal, revealing evidence for disorder of one of the methyl groups. The same authors also identified what they believed to be a plastic phase using X-ray powder diffraction. Calorimetry subsequently showed that there is a broad region over which there are gradual changes in the positional disorder of the methyl hydrogens. Since the structural details are important in both interpreting experimental vibrational spectra and computing spectra from first principles, and since spectroscopy is the principal means of characterizing the state of ices detected remotely in the cosmos, it is essential to determine the complete structure of methyl acetate as a function of temperature using neutron diffraction.
DOI: 10.5286/isis.e.rb2310380-1
title: Structure and ordering of methyl acetate.

description: Solid methyl acetate is known to occur in interstellar and cometary ices, but details of its crystal structure at low temperature remain ambiguous. In the only published diffraction study, by Barrow et al. (1981), the structure at 145 K was determined from a single crystal, revealing evidence for disorder of one of the methyl groups. The same authors also identified what they believed to be a plastic phase using X-ray powder diffraction. Calorimetry subsequently showed that there is a broad region over which there are gradual changes in the positional disorder of the methyl hydrogens. Since the structural details are important in both interpreting experimental vibrational spectra and computing spectra from first principles, and since spectroscopy is the principal means of characterizing the state of ices detected remotely in the cosmos, it is essential to determine the complete structure of methyl acetate as a function of temperature using neutron diffraction.
DOI: 10.3535/27b-7jf-1kv
title: Euphorbia falcata L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/nkf-3vn-p1k
title: Cyperus fuscus L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2310164-2
title: Missing phases in CsPbCl3 explored using high-pressure

description: Lead-halide perovskites are attractive candidates for applications such as solar cells, light-emitting diodes, and photodetectors, due to their excellent photoelectric efficiencies. As is the case with many of this class of material, CsPbCl3 is highly sensitive to external factors, with four known polymorphs at ambient pressure. At elevated pressures, the story is more complicated, with two additional phases identified up to 2 GPa at 300 K, both highly dependent on the route taken to get there, with structures unknown. Understanding this material at elevated pressures is important to aid our understanding of the effects of external strains on this material, which is essential for potential applications in thin-film devices. We aim to revisit this material to extend the known pressure/temperature phase diagram, to better understand the nature of these missing phases at ambient temperature.
DOI: 10.5286/isis.e.rb2390045
title: The spectrum of glue
DOI: 10.5286/isis.e.rb2390045-1
title: The spectrum of glue
DOI: 10.3535/6v4-lvg-bwh
title: Nothofagus obliqua (Mirb.) Oerst.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2310164
title: Missing phases in CsPbCl3 explored using high-pressure

description: Lead-halide perovskites are attractive candidates for applications such as solar cells, light-emitting diodes, and photodetectors, due to their excellent photoelectric efficiencies. As is the case with many of this class of material, CsPbCl3 is highly sensitive to external factors, with four known polymorphs at ambient pressure. At elevated pressures, the story is more complicated, with two additional phases identified up to 2 GPa at 300 K, both highly dependent on the route taken to get there, with structures unknown. Understanding this material at elevated pressures is important to aid our understanding of the effects of external strains on this material, which is essential for potential applications in thin-film devices. We aim to revisit this material to extend the known pressure/temperature phase diagram, to better understand the nature of these missing phases at ambient temperature.