cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.5286/isis.e.rb2310497-1
title: Calibration Standards for Spin-echo modulated small angle neutron scattering (SEMSANS)

description: As a relatively new experimental technique Spin-echo modulated small angle neutron scattering (SEMSANS) does not have an established calibration standard. Such a standard would be used to validate results and would allow comparisons between different SEMSANS instruments. This Experiment will asses the validity of colloidal crystals, formed by a drying pattern of silica nanoparticles, as a sample for the calibration of SEMSANS instruments. When measured using SEMSANS, the well ordered structure formed by silica nanoparticles coated with a polymer stabilizer will for a periodic function. This experiment will also asses the stability of these samples in humid conditions.
DOI: 10.3535/d6w-3tn-gca
title: Geogenanthus poeppigii (Miq.) Faden

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/kqx-9cn-5ag
title: Geogenanthus rhizanthus (Ule) G.Brückn.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2291023-1
title: Structural characterisation of Mn3Cr2(NCN)6
DOI: 10.5286/isis.e.rb2291056-1
title: The Crystal Structure of the Ionic Conductor Ba7Nb3.95V0.05MoO20
DOI: 10.5286/isis.e.rb2310497
title: Calibration Standards for Spin-echo modulated small angle neutron scattering (SEMSANS)

description: As a relatively new experimental technique Spin-echo modulated small angle neutron scattering (SEMSANS) does not have an established calibration standard. Such a standard would be used to validate results and would allow comparisons between different SEMSANS instruments. This Experiment will asses the validity of colloidal crystals, formed by a drying pattern of silica nanoparticles, as a sample for the calibration of SEMSANS instruments. When measured using SEMSANS, the well ordered structure formed by silica nanoparticles coated with a polymer stabilizer will for a periodic function. This experiment will also asses the stability of these samples in humid conditions.
DOI: 10.3535/rrg-gtc-xws
title: Galium suffruticosum Hook. & Arn.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/v93-q29-fm6
title: Geogenanthus poeppigii (Miq.) Faden

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2291022-1
title: Structural characterisation of MnCr2(NCN)4
DOI: 10.5286/isis.e.rb2368054
title: Hydrogel Promoted Transdermal Permeation of Anti-cancer Drugs for Breast Cancer Treatment
DOI: 10.5286/isis.e.rb2368054-1
title: Hydrogel Promoted Transdermal Permeation of Anti-cancer Drugs for Breast Cancer Treatment
DOI: 10.3535/lkv-xhc-hgc
title: Bromelia arenaria Ule

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2291084-1
title: Structural disorder and organic intercalation into biogenic aragonite
DOI: 10.5286/isis.e.rb2291085-1
title: Structural disorder and organic intercalation into biogenic aragonite_2
DOI: 10.5286/isis.e.rb2291104-1
title: Structural characterisation of SPS NMC samples
DOI: 10.3535/ewz-jw6-lwv
title: Galium hypocarpium (L.) Endl. ex Griseb.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/rjh-4hn-afw
title: Galium hypocarpium (L.) Endl. ex Griseb.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2220550-2
title: Moisture dependent vibrational dynamics in nanocellulose materials
DOI: 10.5286/isis.e.rb2220665
title: Copy of: Inelastic neutron scattering study of endofullerenes: CH4@C60 Study
DOI: 10.5286/isis.e.rb2220665-1
title: Copy of: Inelastic neutron scattering study of endofullerenes: CH4@C60 Study
DOI: 10.3535/gxb-3er-rn5
title: Campanula erinus L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/kp6-79r-0fr
title: Septotrapelia usnica (Sipman) Kalb & Bungartz

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2220550
title: Moisture dependent vibrational dynamics in nanocellulose materials

description: With the switch to more sustainable packaging and insulation materials, the abundantly available nanocellulose is of high interest due to its high strength and flexibility, low thermal conductivity, and low carbon footprint. Nanocellulose-based foams can display moisture-dependent super-insulating properties. One of the challenges with nanocellulose is its hygroscopic nature, making the properties of the materials highly dependent on water content. Moisture can influence both the bonding and separation between nanofibrils, and affect the crystallinity. We propose to use vibrational inelastic neutron scattering measure how the moisture content affects the internal vibrational modes in nanocellulose of different dimensions and crystallinity. The obtained spectra will be compared to optical spectra and simulations to elucidate the effect of moisture on the internal vibrational motions.
DOI: 10.5286/isis.e.rb2310293
title: Crack behavior in a residual stress field at fillet welds in ship structure

description: Fillet welds are used in joining longitudinal stiffeners in ship structures. Welding residual stresses in fillet welds are generally distributed in a non-uniform manner. As the residual stress influences the crack propagation originating from the toe of the fillet welds, a full understanding of the residual stress field and how it evolves is very important for structural integrity calculations. Previous work was aimed at determining the residual stress redistribution under cyclic loading in the elastic shakedown regime. However, that work did not consider the presence of any flaw or defect: knowledge of the residual stress redistribution in the presence of a flaw is therefore required for better fatigue life prediction. Moreover, defect assessment procedures such as BS7910 offer very limited guidance for flaw acceptance and the associated residual stress redistribution in the assessment of fillet welds. Therefore, the objective of this work is to study the effect of a surface-breaking flaw at the weld toe region in a fillet weld under cyclic load to determine the residual stress evolution at pre-defined crack depths.
DOI: 10.5286/isis.e.rb2310293-1
title: Crack behavior in a residual stress field at fillet welds in ship structure

description: Fillet welds are used in joining longitudinal stiffeners in ship structures. Welding residual stresses in fillet welds are generally distributed in a non-uniform manner. As the residual stress influences the crack propagation originating from the toe of the fillet welds, a full understanding of the residual stress field and how it evolves is very important for structural integrity calculations. Previous work was aimed at determining the residual stress redistribution under cyclic loading in the elastic shakedown regime. However, that work did not consider the presence of any flaw or defect: knowledge of the residual stress redistribution in the presence of a flaw is therefore required for better fatigue life prediction. Moreover, defect assessment procedures such as BS7910 offer very limited guidance for flaw acceptance and the associated residual stress redistribution in the assessment of fillet welds. Therefore, the objective of this work is to study the effect of a surface-breaking flaw at the weld toe region in a fillet weld under cyclic load to determine the residual stress evolution at pre-defined crack depths.
DOI: 10.3535/laa-418-b6h
title: Verrucaria rhizicola Aptroot & Thüs

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/r58-c9n-79b
title: Verrucaria

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2310621
title: Competition between Heisenberg Exchange, Double Exchange and Vibronic Coupling in the First Mixed-Valence Dimer with an Intermediate Spin Ground State

description: Very recently, the first dimer molecule with an intermediate spin ground state realised by delicate balancing of competing exchange interactions (Heisenberg and double) and vibronic coupling was published [Nat. Chem., 14, 328 (2022)]. This shows it is possible to balance exchange mechanisms and vibronic coupling in order to obtain desired properties, such as molecules which switch spin ground state by applying an electric field. We propose to make the first direct observation of an intermediate spin ground state and its spin dynamics with inelastic neutron scattering to accurately quantify the competition between Heisenberg and double exchange as well as the vibronic coupling. This will provide unprecedented insight into double exchange spin dynamics in molecules and validate existing computational approaches useful for predicting the properties of mixed-valence molecules.
DOI: 10.5286/isis.e.rb2310621-1
title: Competition between Heisenberg Exchange, Double Exchange and Vibronic Coupling in the First Mixed-Valence Dimer with an Intermediate Spin Ground State

description: Very recently, the first dimer molecule with an intermediate spin ground state realised by delicate balancing of competing exchange interactions (Heisenberg and double) and vibronic coupling was published [Nat. Chem., 14, 328 (2022)]. This shows it is possible to balance exchange mechanisms and vibronic coupling in order to obtain desired properties, such as molecules which switch spin ground state by applying an electric field. We propose to make the first direct observation of an intermediate spin ground state and its spin dynamics with inelastic neutron scattering to accurately quantify the competition between Heisenberg and double exchange as well as the vibronic coupling. This will provide unprecedented insight into double exchange spin dynamics in molecules and validate existing computational approaches useful for predicting the properties of mixed-valence molecules.
DOI: 10.3535/dar-da0-dxd
title: Solenanthus circinnatus Ledeb.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2310221
title: Magnetic structure characterization on 4d5 La2BRhO6 (B = Mg, Zn) materials with double perovskite structure at dilution temperatures with NPD

description: During the last decade increasing efforts in finding a material realizing the theoretically predicted quantum spin liquid (QSL) state, characterized by the absence of long-ranged magnetic order as well as highly entangled and dynamic spins down to zero Kelvin, has led to intense studies of various frustrated systems. Recently, the search for new QSL compounds has been extended to strongly spin-orbit coupled 4d/5d systems, such as Ir-/Rh-based oxides, showing promising results, motivating to take a closer look also at 4d double perovskites. Here, the relatively understudies Rh4+ 4d5 based compounds La2BRhO6 (B = Zn, Mg) offer an interesting platform for a deeper understanding of the origin of the QSL state. Our preliminary work revealed, that La2ZnRhO6 doesn’t experience any sign of long-range magnetic order down to 0.36 K and a power-law behaviour in specific heat measurements. At the same time magnetisation studies show sizable antiferromagnetic correlation in the high temperature Curie-Weiss behaviour with ΘCW = -36 K resulting in a high frustration factor of 100. An apparent phase transition is only evident in the dilution temperature magnetisation measurements near 1-1.5 K. The thermal hysteretic behaviour and sweep rate dependence suggest a structural origin. Leaving open the possibility of a QSL state. The isostructural La2MgRhO6 on the other hand, having a similar ΘCW, shows signs of an antiferromagnetic phase transition around 7 K.
DOI: 10.5286/isis.e.rb2310221-1
title: Magnetic structure characterization on 4d5 La2BRhO6 (B = Mg, Zn) materials with double perovskite structure at dilution temperatures with NPD

description: During the last decade increasing efforts in finding a material realizing the theoretically predicted quantum spin liquid (QSL) state, characterized by the absence of long-ranged magnetic order as well as highly entangled and dynamic spins down to zero Kelvin, has led to intense studies of various frustrated systems. Recently, the search for new QSL compounds has been extended to strongly spin-orbit coupled 4d/5d systems, such as Ir-/Rh-based oxides, showing promising results, motivating to take a closer look also at 4d double perovskites. Here, the relatively understudies Rh4+ 4d5 based compounds La2BRhO6 (B = Zn, Mg) offer an interesting platform for a deeper understanding of the origin of the QSL state. Our preliminary work revealed, that La2ZnRhO6 doesn’t experience any sign of long-range magnetic order down to 0.36 K and a power-law behaviour in specific heat measurements. At the same time magnetisation studies show sizable antiferromagnetic correlation in the high temperature Curie-Weiss behaviour with ΘCW = -36 K resulting in a high frustration factor of 100. An apparent phase transition is only evident in the dilution temperature magnetisation measurements near 1-1.5 K. The thermal hysteretic behaviour and sweep rate dependence suggest a structural origin. Leaving open the possibility of a QSL state. The isostructural La2MgRhO6 on the other hand, having a similar ΘCW, shows signs of an antiferromagnetic phase transition around 7 K.
DOI: 10.5286/isis.e.rb2310409
title: Real-time monitoring of lyotropic phase evolution in ageing droplets of a surfactant atmospheric aerosol proxy: a levitation-SANS study

description: Aerosol particles are important components of the air we breathe. The particles we breathe in can contain compounds harmful to our health and also act as cloud condensation nuclei (CCN) to form cloud droplets, impacting the climate. The phase state of these aerosols controls the kinetics of their ageing, with more viscous particles ageing slower than less viscous particles. This results in longer atmospheric lifetimes for potentially harmful particle constituents and may slow down the creation of cloud droplets. The viscosity is therefore linked to the persistence of hygroscopic and harmful compounds bound to the particle, impacting on the climate and human health, respectively. Surfactants, such as oleic acid, are found in urban and marine aerosol emissions and we have previously shown that an oleic acid aerosol proxy can self-organise into a range of viscous lyotropic liquid crystal phases. We propose a levitation-SANS experiment to continue our successful investigations into the impact of surfactant self-organisation in atmospheric aerosol droplets. We want to systematically study how these phases evolve when exposed to simulated atmospheric ageing (oxidation by ozone and humidity cycles). After discussion with a beamline scientist, this proposal is appropriate for any TS2 SANS instrument at 4 m.
DOI: 10.5286/isis.e.rb2310409-1
title: Real-time monitoring of lyotropic phase evolution in ageing droplets of a surfactant atmospheric aerosol proxy: a levitation-SANS study

description: Aerosol particles are important components of the air we breathe. The particles we breathe in can contain compounds harmful to our health and also act as cloud condensation nuclei (CCN) to form cloud droplets, impacting the climate. The phase state of these aerosols controls the kinetics of their ageing, with more viscous particles ageing slower than less viscous particles. This results in longer atmospheric lifetimes for potentially harmful particle constituents and may slow down the creation of cloud droplets. The viscosity is therefore linked to the persistence of hygroscopic and harmful compounds bound to the particle, impacting on the climate and human health, respectively. Surfactants, such as oleic acid, are found in urban and marine aerosol emissions and we have previously shown that an oleic acid aerosol proxy can self-organise into a range of viscous lyotropic liquid crystal phases. We propose a levitation-SANS experiment to continue our successful investigations into the impact of surfactant self-organisation in atmospheric aerosol droplets. We want to systematically study how these phases evolve when exposed to simulated atmospheric ageing (oxidation by ozone and humidity cycles). After discussion with a beamline scientist, this proposal is appropriate for any TS2 SANS instrument at 4 m.
DOI: 10.3535/33s-6b3-cgp
title: Plantae

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/zhd-zxk-f13
title: Cyperus fuscus L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2291044-1
title: Testing Li diffusion in LiTCNQ
DOI: 10.5286/isis.e.rb2310652
title: FMR-PNR with Non-Collinear Polarization-Magnetisation Geometry

description: In a previous experiment we aimed to measure the in-situ ferromagnetic resonance (FMR) with polarised neutron reflectivity (PNR) using a ferromagnetically coupled Co/Ru superlattice. The objective was to detect magnetisation dynamics and potentially spin pumping so that PNR could offer insights into the depth dependence of these effects and quantify e.g. the cone angle of the magnetisation oscillation. Understanding magnetisation dynamics is very important in many spintronics devices and applications as it determines e.g. the speed and energy cost of switching the magnetisation. The results we obtained in our first beamtime were very promising but inconclusive. Here, we will carry out the experiment in a non-collinear geometry where the neutron polarization is at an angle with respect to the sample magnetisation.
DOI: 10.5286/isis.e.rb2310652-1
title: FMR-PNR with Non-Collinear Polarization-Magnetisation Geometry

description: In a previous experiment we aimed to measure the in-situ ferromagnetic resonance (FMR) with polarised neutron reflectivity (PNR) using a ferromagnetically coupled Co/Ru superlattice. The objective was to detect magnetisation dynamics and potentially spin pumping so that PNR could offer insights into the depth dependence of these effects and quantify e.g. the cone angle of the magnetisation oscillation. Understanding magnetisation dynamics is very important in many spintronics devices and applications as it determines e.g. the speed and energy cost of switching the magnetisation. The results we obtained in our first beamtime were very promising but inconclusive. Here, we will carry out the experiment in a non-collinear geometry where the neutron polarization is at an angle with respect to the sample magnetisation.
DOI: 10.3535/yrj-ckv-zsj
title: Ramalina geniculatella Aptroot

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2220307
title: The nanoscale structure in BiFeO3-BaTiO3-SrTiO3 Relaxor Ferroelectrics
DOI: 10.5286/isis.e.rb2220307-1
title: The nanoscale structure in BiFeO3-BaTiO3-SrTiO3 Relaxor Ferroelectrics
DOI: 10.3535/311-dnz-fh2
title: Phacelia secunda J. F. Gmel.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/aae-mqw-naj
title: Luzula luzuloides subsp. luzuloides

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2291094-1
title: Structure of [NO][BF4]
DOI: 10.5286/isis.e.rb2310189-1
title: Magneto-elastic enhancement of sublattice interactions in RMn7O12

description: The quadruple perovskite manganites provide a fruitful playground to explore the interplay between charge, orbital and spin degrees of freedom on multiple sublattices, producing exotic phases of fundamental scientific and technological interest. Across the monoclinic A3+Mn7O12 family, competing descriptions of magnetic order have been put forward and ascribed to the same characteristic magnetic intensities. Such discrepancies have emerged due to an inherent difficulty in differentiating competing models against magnetic diffraction alone. Using symmetry arguments we have established that a strong magneto-elastic coupling scheme, as evidenced in the lattice parameters, can support only one of the proposed magnetic models.We propose a neutron powder diffraction experiment on PrMn7O12 to confirm our hypothesis. Secondly, we aim to solve the ground state magnetic structure, likely elucidating the role of orbital instabilities in mediating magnetism across the wider family.
DOI: 10.5286/isis.e.rb2390056
title: Diffraction on VESUVIO: Gd2CoRu4O6
DOI: 10.5286/isis.e.rb2390056-1
title: Diffraction on VESUVIO: Gd2CoRu4O6
DOI: 10.3535/7nj-tnt-af1
title: Ramalina sanctae-helenae Aptroot

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/ndv-2ma-9gk
title: Nothofagus Blume

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2220645
title: INS to understand the nature of intermediates in the pyrolysis of LDPE using ZSM-5 catalyst

description: The issue of plastic waste is a global concern, and “chemical recycling” via plastic pyrolysis offers a viable route towards closing the carbon cycle – creating new monomers from plastics that would otherwise be created from crude oil and preventing more “non-recyclable” plastics from being sent to landfill. In this study, we propose to use INS to characterise hydrocarbon species involved at 3 stages of plastic pyrolysis in H-ZSM-5 catalyst. We plan to physically mix low-density polyethylene with the catalyst and measure at room temperature, heat and measure at 270 °C and heat and measure again at 320 °C. These studies would compliment FTIR studies from our lab work, but crucially offer insight into the low frequency region &lt;1500 cm-1 that by IR are obscured by the zeolite framework. This proposal also supports a parallel QENS proposal submitted.
DOI: 10.5286/isis.e.rb2220645-3
title: INS to understand the nature of intermediates in the pyrolysis of LDPE using ZSM-5 catalyst
DOI: 10.5286/isis.e.rb2310189
title: Magneto-elastic enhancement of sublattice interactions in RMn7O12

description: The quadruple perovskite manganites provide a fruitful playground to explore the interplay between charge, orbital and spin degrees of freedom on multiple sublattices, producing exotic phases of fundamental scientific and technological interest. Across the monoclinic A3+Mn7O12 family, competing descriptions of magnetic order have been put forward and ascribed to the same characteristic magnetic intensities. Such discrepancies have emerged due to an inherent difficulty in differentiating competing models against magnetic diffraction alone. Using symmetry arguments we have established that a strong magneto-elastic coupling scheme, as evidenced in the lattice parameters, can support only one of the proposed magnetic models.We propose a neutron powder diffraction experiment on PrMn7O12 to confirm our hypothesis. Secondly, we aim to solve the ground state magnetic structure, likely elucidating the role of orbital instabilities in mediating magnetism across the wider family.
DOI: 10.3535/mr9-k18-788
title: Medicago arabica (L.) Huds.

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