cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.5286/isis.e.rb2320115
title: Microstructure of poly-L-lysine (PLL) single chain nanoparticles: The role of the precursor conformation

description: Polypeptide single chain nanoparticles (SCNPs) have enormous potential in biomedical applications due to their biocompatibility and low immunogenicity. Among the homo-polypeptides, polylyisine has established applications on gene delivery that would benefit from the morphology provided by SCNPs. However, it is challenging to form SCNPs from a weak polyelectrolyte because its rigidity prevents chain collapse upon cross-linking. Thus, it is important to understand the role of the initial linear chain conformation on the resulting SCNP morphology. This proposal aims to use SANS to probe the effect of the poly-L-lysine (PLL) conformation through solvent conditions on the morphology of the resulting SCNPs.
DOI: 10.5286/isis.e.rb2320281-1
title: Mapping the spin correlations in the single crystal of a novel triangular lattice antiferromagnet ErTa7O19

description: Rare-earth (RE) based geometrically frustrated magnets represent a promising avenue in the search of enigmatic quantum spin liquids (QSLs). Our previous study has identified a novel family of RE heptatantalates RETa7O19, where in the Nd case strong Ising anisotropy on the triangular lattice leads to a QSL state. As the nature of the RE ions can strongly influence the magnetic anisotropy we initiated a study of isostructural ErTa7O19 with twice stronger magnetic interactions. Recent neutron diffraction measurements done on the WISH instrument revealed sizable magnetic diffuse scattering as a signature of short-range spin correlations. Here we propose a single crystal neutron diffraction study on the WISH instrument to map and compare the in-plane and out-of-plane spin correlations in the reciprocal space.
DOI: 10.3535/3vx-5gy-bcd
title: Cephalanthera longifolia (L.) Fritsch

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2320059
title: On the Effect of the Surfactant on the Structuring of CiEj- and CmGn-based Bicontinuous Microemulsions Inside a Controlled-Pore Glass

description: This proposal addresses the influence of a confining porous network on the structure of bicontinuous microemulsions inside pores of different sizes. Two different types of bicontinuous microemulsions inside controlled-pore silica glasses (CPGs) will be investigated. CPGs are porous glasses with a bicontinuous structure available with different pore diameters. To compare different types of microemulsions, we chose the ternary system C10E4-water-octane based on an alkyl polyglycol ether surfactant and the quaternary system C10G1-water-dodecane-1-pentanol based on an alkyl polyglycoside surfactant. The impact of the different adsorption behaviour of the chosen surfactants on silica will be investigated. The possible changes of the surface wetting component of the microemulsions could influence the structure inside the pores of the silica network. SANS experiments with contrast variation are required for a detailed structural analysis of the microemulsions inside the porous network.
DOI: 10.5286/isis.e.rb2320059-1
title: On the Effect of the Surfactant on the Structuring of CiEj- and CmGn-based Bicontinuous Microemulsions Inside a Controlled-Pore Glass

description: This proposal addresses the influence of a confining porous network on the structure of bicontinuous microemulsions inside pores of different sizes. Two different types of bicontinuous microemulsions inside controlled-pore silica glasses (CPGs) will be investigated. CPGs are porous glasses with a bicontinuous structure available with different pore diameters. To compare different types of microemulsions, we chose the ternary system C10E4-water-octane based on an alkyl polyglycol ether surfactant and the quaternary system C10G1-water-dodecane-1-pentanol based on an alkyl polyglycoside surfactant. The impact of the different adsorption behaviour of the chosen surfactants on silica will be investigated. The possible changes of the surface wetting component of the microemulsions could influence the structure inside the pores of the silica network. SANS experiments with contrast variation are required for a detailed structural analysis of the microemulsions inside the porous network.
DOI: 10.5286/isis.e.rb2320281
title: Mapping the spin correlations in the single crystal of a novel triangular lattice antiferromagnet ErTa7O19

description: Rare-earth (RE) based geometrically frustrated magnets represent a promising avenue in the search of enigmatic quantum spin liquids (QSLs). Our previous study has identified a novel family of RE heptatantalates RETa7O19, where in the Nd case strong Ising anisotropy on the triangular lattice leads to a QSL state. As the nature of the RE ions can strongly influence the magnetic anisotropy we initiated a study of isostructural ErTa7O19 with twice stronger magnetic interactions. Recent neutron diffraction measurements done on the WISH instrument revealed sizable magnetic diffuse scattering as a signature of short-range spin correlations. Here we propose a single crystal neutron diffraction study on the WISH instrument to map and compare the in-plane and out-of-plane spin correlations in the reciprocal space.
DOI: 10.15468/dl.wm4wh5
title: Occurrence Download

description: A dataset containing 81 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Bidens frondosa L.",
 "Country is China",
 "HasCoordinate is true"
 ]
}

 The dataset includes 81 records from 5 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0109245-250525065834625/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.3535/ydd-tnf-6r6
title: Orchis militaris L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/zyv-tgk-65a
title: Orchis militaris L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2220319
title: Crystal-field excitations in the novel triangular lattice antiferromagnet ErTa7O19
DOI: 10.5286/isis.e.rb2220319-1
title: Crystal-field excitations in the novel triangular lattice antiferromagnet ErTa7O19
DOI: 10.5286/isis.e.rb2320214-2
title: The structure of Li and Na Phosphate oxynitride glassy electrolytes

description: In this proposal we will evaluate the structure of Li and Na phosphate glasses where oxygen has been partly substituted by nitrogen. This work is developed form a rapid access proposal, undertaken and GEM and work completed at the SNS (NOMAD) and forms part of a large-scale project that is focussed on developing these materials as solid electrolytes. Nitrogen can be Incorporated into phosphate glasses when exposed to ammonia (ammonolysis) and after nitridation the glasses show enhanced properties including improved mechanical performance. Importantly from a glass structure perspective these glasses have “invert” structures with isolated coordination polyhedra and extensive intermediate range order in. In this proposal, we will study two base compositions, a metaphosphate (MPO3) and M4P2O7 (M=Li or Na) to compare and contrast the medium range ordering. Molecular dynamics simulations of these systems is show development of ordering at the intermediate length scale and development (in the simulations) of small angle features, not accessed in the study completed at GEM. Therefore we will evaluate the development of intermediate range ordering and small angle features using the full Q range available at NIMROD. We will study 12 samples and evaluate structures as a function of nitrogen and also as a function of the two alkali cations, lithium and sodium.
DOI: 10.15468/dl.4nhfqb
title: Occurrence Download

description: A dataset containing 3 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Bidens frondosa L.",
 "Country is Bulgaria",
 "HasCoordinate is true"
 ]
}

 The dataset includes 3 records from 2 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0109244-250525065834625/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.3535/l7z-m28-cdm
title: Orchis militaris L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/nwr-yw6-jhf
title: Tanacetum cinerariifolium (Trevis.) Sch. Bip.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2220152
title: Cation and anion ordering in substituted aikinites
DOI: 10.5286/isis.e.rb2220152-1
title: Cation and anion ordering in substituted aikinites
DOI: 10.5286/isis.e.rb2310149-1
title: Correlation between crystal structure and microwave properties of cordierite type dielectric ceramics

description: Cordierite-based (Mg2Al4Si5O18) dielectric ceramics with a lower dielectric constant would have significant application potential as dielectric resonator and filter materials for future ultra-low-latency millimeter-wave and terahertz communication. Here we successfully synthesised Cordierite based ceramic compositions with substitution of Al and Si sites with chemical dopants to optimise the microwave dielectric properties, such as Q×f value and temperature coefficient. We believe understanding the crystallography information is paramount in order to optimise their electrical properties however, most of the structural characterisation techniques are insensitive to these light chemical elements, i.e. Al and Si. Instead, high-resolution neutron powder diffraction (room temperature), along with full-pattern Rietveld refinement, provides an opportunity to obtain composition-dependent phase transition, lattice information and atomic positions. The results obtain in this study not only underpin the origin of optimised microwave properties from atomic structural perspective but also provide instructive for the design and development of new and improved dielectric ceramics in the future.
DOI: 10.3535/czt-49n-hgc
title: Plantae

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/plg-50h-q15
title: Leucanthemopsis pallida subsp. pallida

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2220755
title: Surface Catalysis Probed by Muonium Reactivity with Metal Nanoparticles
DOI: 10.5286/isis.e.rb2220755-1
title: Surface Catalysis Probed by Muonium Reactivity with Metal Nanoparticles
DOI: 10.5286/isis.e.rb2310149
title: Correlation between crystal structure and microwave properties of cordierite type dielectric ceramics

description: Cordierite-based (Mg2Al4Si5O18) dielectric ceramics with a lower dielectric constant would have significant application potential as dielectric resonator and filter materials for future ultra-low-latency millimeter-wave and terahertz communication. Here we successfully synthesised Cordierite based ceramic compositions with substitution of Al and Si sites with chemical dopants to optimise the microwave dielectric properties, such as Q×f value and temperature coefficient. We believe understanding the crystallography information is paramount in order to optimise their electrical properties however, most of the structural characterisation techniques are insensitive to these light chemical elements, i.e. Al and Si. Instead, high-resolution neutron powder diffraction (room temperature), along with full-pattern Rietveld refinement, provides an opportunity to obtain composition-dependent phase transition, lattice information and atomic positions. The results obtain in this study not only underpin the origin of optimised microwave properties from atomic structural perspective but also provide instructive for the design and development of new and improved dielectric ceramics in the future.
DOI: 10.3535/3ev-7fv-z4c
title: Pinus edulis Engelm.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2220554-2
title: Non invasive characterization through neutron diffraction of Nuragic boat models
DOI: 10.5286/isis.e.rb2310407-3
title: Interfacial Structures of Dye-Sensitized Solar Cell Working Electrodes

description: The transparent and low-cost nature of dye-sensitised solar cells (DSCs) affords them niche prospects for electricity-generating windows in buildings for energy-sustainable future cities. Despite their vast industrial potential, innovation is being held up by a lack of suitable dyes. Better dyes can only be realised if we can better understand how the dye...TiO2 interface of a working electrode in a DSC functions at the molecular level. To this end, we propose to exploit neutron contrast matching through selective deuteration to study the interfacial structure (dye adsorption modes, interdye separation and dye/TiO2 tilt angles) of self-assembled dyes on TiO2 surfaces to uncover the structural origin of the photovoltaic enhancement of the associated device. We will study five dye...TiO2 working electrodes, where the dye is one of five commercially-used Ru-basedorganometallic complexes.
DOI: 10.3535/cvv-jsk-0hy
title: Ephedra Tourn. ex L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/e3x-21t-ezp
title: Plantae

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2220554
title: Non invasive characterization through neutron diffraction of Nuragic boat models
DOI: 10.5286/isis.e.rb2300066
title: CANADIAN: Polarized neutron reflectometery of MnGe thin film in in-plane magnetic fields

description: MnGe is a chiral magnetic material that potentially possesses multiple interesting topological states. Although the cubic B20 phase is not thermodynamically stable in bulk form, single orientation films can be grown on Si substrates. The in-plane magnetic phase diagram is not fully understood. We proposed to use polarized neutron reflectometery to measure the magnetic structure of high-quality MnGe films grown by molecular beam epitaxy on Si(111) substrates to reveal the structure of an unidentified phase in a pocket near the magnetic ordering temperature, which may correspond to 2-dimensional topological structures known as skyrmions. We will investigate how finite size effects affect the competition between helicoids and skyrmions and potentially find evidence for a novel chiral interaction predicted to exist in MnGe.
DOI: 10.5286/isis.e.rb2300066-1
title: CANADIAN: Polarized neutron reflectometery of MnGe thin film in in-plane magnetic fields

description: MnGe is a chiral magnetic material that potentially possesses multiple interesting topological states. Although the cubic B20 phase is not thermodynamically stable in bulk form, single orientation films can be grown on Si substrates. The in-plane magnetic phase diagram is not fully understood. We proposed to use polarized neutron reflectometery to measure the magnetic structure of high-quality MnGe films grown by molecular beam epitaxy on Si(111) substrates to reveal the structure of an unidentified phase in a pocket near the magnetic ordering temperature, which may correspond to 2-dimensional topological structures known as skyrmions. We will investigate how finite size effects affect the competition between helicoids and skyrmions and potentially find evidence for a novel chiral interaction predicted to exist in MnGe.
DOI: 10.3535/ryz-rvd-n1e
title: Ranunculus flabellatus Desf.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/w6h-58h-2ax
title: Plantae

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2310713-1
title: Determination of ground state and magnetic correlations in a quasi-one dimensional spin chain iridate Ca3CoIrO6 using neutron diffraction

description: Ca3CoIrO6 is a quasi-one-dimensional columnar spin-chain iridate with alternately arranged face-sharing IrO6 octahedra and CoO6 trigonal prisms along the c-axis of the structure. This compound, surprisingly, unlike its isostructural counterparts Ca3Co2O6 and Ca3CoRhO6, does not exhibit partially disordered antiferromagnetic (PDA) structure. While, the combined bulk dc, ac magnetic susceptibilities, specific heat, and isothermal remanent magnetization measurements strongly infer only spin-glass-like freezing transition at ~30 K without any signature of PDA characteristics. The zero-field µSR investigations unravel the coexistence of intrachain ferromagnetic long-range ordering below 100 K and the glassy magnetic transition below 30 K. At this point, detection of true magnetic ground state as well as the ground state Ir- and Co-spin configurations of this system is elusive, thereby warranting microscopic magnetic investigation to authenticate the nature of magnetic ordering and short-range magnetic correlations and we therefore proposed neutron diffraction study of Ca3CoIrO6 on WISH.
DOI: 10.5286/isis.e.rb2320171
title: HOW IONIC LIQUIDS CAN AFFECT THE NANOSTRUCTURE OF FLUORINATED-BASED PIEZORESISTIVE POLYMER COMPOSITES

description: Smart materials, defined as materials with the ability to change their properties through the application of external physical stimuli and with high functionality in simplified structures, are gaining increasing interest to act as sensors and actuators. In this context, smart materials based on electroactive polymers have emerged as particularly attractive candidates and research in the area has been essentially focused on the development of actuators based on ionic electroactive polymer composites, allowing much larger deformations at a lower voltage than piezoelectric actuators. In particular, on the development of ionic liquid-based ionic electroactive polymers, obtained through the inclusion of ionic liquids (ILs) into the polymer matrix. ILs are salts, usually composed by an organic cation and an organic/inorganic anion. The interaction between the matrix and the ILs, and its impact on the final characteristics are not properly understood yet. Thus, several questions are still open and they need to be well-investigated. For instance, which is the influence of the matrix on the final structural organization? How does the composition affect the morphology? In order to answer all of them, the idea here is to propose SANS experiments, in two hybrid materials at different compositions with different structure.
DOI: 10.5286/isis.e.rb2320171-1
title: HOW IONIC LIQUIDS CAN AFFECT THE NANOSTRUCTURE OF FLUORINATED-BASED PIEZORESISTIVE POLYMER COMPOSITES

description: Smart materials, defined as materials with the ability to change their properties through the application of external physical stimuli and with high functionality in simplified structures, are gaining increasing interest to act as sensors and actuators. In this context, smart materials based on electroactive polymers have emerged as particularly attractive candidates and research in the area has been essentially focused on the development of actuators based on ionic electroactive polymer composites, allowing much larger deformations at a lower voltage than piezoelectric actuators. In particular, on the development of ionic liquid-based ionic electroactive polymers, obtained through the inclusion of ionic liquids (ILs) into the polymer matrix. ILs are salts, usually composed by an organic cation and an organic/inorganic anion. The interaction between the matrix and the ILs, and its impact on the final characteristics are not properly understood yet. Thus, several questions are still open and they need to be well-investigated. For instance, which is the influence of the matrix on the final structural organization? How does the composition affect the morphology? In order to answer all of them, the idea here is to propose SANS experiments, in two hybrid materials at different compositions with different structure.
DOI: 10.3535/yy4-tt2-99m
title: Matricaria inodora L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2291047-1
title: Lanthanum Substitution on Inorganic Solid State Electrolytes for Li Batteries
DOI: 10.5286/isis.e.rb2300051-1
title: Excitation spectrum in a spin-1 chain with alternating easy-axis direction

description: We plan to study a spin-1 antiferromagnet Ni(pym)(NO3)2(D2O)2, where the Ni(II) ions are connected in a staggered chain structure. Previous studies of similar spin-1/2 Cu(II) systems revealed a host of exotic excitations that map on the soliton and breather modes of the sine-Gordon model of quantum-field-theory. Spin-1 chains, however, are known to differ fundamentally from their spin-1/2 counterparts, and the structure of these materials suggests the presence of an unusual, alternating single-ion anisotropy. Recently, we studied a chiral spin-1 chain material [Ni(pym)(H2O)4]SO4 using inelastic neutron scattering (INS) on the LET instrument. Below the long-range ordering temperature, we find an information-rich excitation spectrum, which arises from the four-fold periodic alternation of the local easy axis. Similarly, in the staggered chain, we expect that the competition between the alternating anisotropy and antiferromagnetic will give rise to a unique excitation spectrum. However, preliminary calculations suggest a behaviour that is different to its chiral cousin. Understanding these differences will help us get to the bottom of the complex magnetic properties displayed by this new class of quantum spin chains. Therefore, we propose to use zero-field inelastic neutron scattering, below magnetic ordering temperatures Tc = 2.3 K, at LET to quantify the energy scales governing the magnetic properties and map the excitation spectra.
DOI: 10.5286/isis.e.rb2310713
title: Determination of ground state and magnetic correlations in a quasi-one dimensional spin chain iridate Ca3CoIrO6 using neutron diffraction

description: Ca3CoIrO6 is a quasi-one-dimensional columnar spin-chain iridate with alternately arranged face-sharing IrO6 octahedra and CoO6 trigonal prisms along the c-axis of the structure. This compound, surprisingly, unlike its isostructural counterparts Ca3Co2O6 and Ca3CoRhO6, does not exhibit partially disordered antiferromagnetic (PDA) structure. While, the combined bulk dc, ac magnetic susceptibilities, specific heat, and isothermal remanent magnetization measurements strongly infer only spin-glass-like freezing transition at ~30 K without any signature of PDA characteristics. The zero-field µSR investigations unravel the coexistence of intrachain ferromagnetic long-range ordering below 100 K and the glassy magnetic transition below 30 K. At this point, detection of true magnetic ground state as well as the ground state Ir- and Co-spin configurations of this system is elusive, thereby warranting microscopic magnetic investigation to authenticate the nature of magnetic ordering and short-range magnetic correlations and we therefore proposed neutron diffraction study of Ca3CoIrO6 on WISH.
DOI: 10.3535/d0z-gxt-hjy
title: Ranunculus bullatus L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/lzr-1y4-pyk
title: Tripleurospermum inodorum (L.) Sch.-Bip

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2220452
title: Dynamics in a sine-Gordon spin chain
DOI: 10.5286/isis.e.rb2220452-1
title: Dynamics in a sine-Gordon spin chain