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172 results for “chirality”
Confined dipole and exchange spin waves in a bulk chiral magnet with Dzyaloshinskii-Moriya interaction-Data files
<p>Raw data associated to the manuscript ‘Confined dipole and exchange spin waves in a bulk chiral magnet with Dzyaloshinskii-Moriya interaction.” File formats are described in info.txt files in the concerning folders. For plotting and data evaluation Matlab 2019b and OriginPro 2018b were used. </p> <p>We acknowledge financial support from the Swiss National Science Foundation (SNSF) via Grant No. 171003 Sinergia project Nanoskyrmionics, the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Grant No. TRR80 (From Electronic Correlations to Functionality, Project No. 107745057, and Projects No. E1 and No. F7), SPP2137 (Skyrmionics, Project No. 403191981, Grant No. PF393/19), and the excellence cluster MCQST under Germany’s Excellence Strategy EXC-2111 (Project No. 390814868). Financial support by the European Research Council (ERC) through Advanced Grants No. 291079 (TOPFIT) and No. 788031 (ExQuiSid) is gratefully acknowledged.</p> <p>Paper abstract:</p> <p>The Dzyaloshinskii-Moriya interaction (DMI) has an impact on excited spin waves in the chiral magnet Cu<sub>2</sub>OSeO<sub>3</sub> by means of introducing asymmetry in their dispersion relations. The confined eigenmodes of a chiral magnet are hence no longer the conventional standing spin waves. Here we report a combined experimental and micromagnetic modeling study by broadband microwave spectroscopy, and we observe confined spin waves up to eleventh order in bulk Cu<sub>2</sub>OSeO<sub>3</sub> in the field-polarized state. In micromagnetic simulations we find similarly rich spectra. They indicate the simultaneous excitation of both dipole- and exchange-dominated spin waves with wavelengths down to (47.2 ± 0.05) nm attributed to the exchange interaction modulation. Our results suggest the DMI to be effective in creating exchange spin waves in a bulk sample without the challenging nanofabrication and thereby in exploring their scattering with noncollinear spin textures.</p>
Chiral surface superconductivity in half-Heusler semimetals
<p>Input and relevant output files for the VASP first-principles calculations on LuPtBi half-Heusler semimetal shown in the manuscript.</p>
Datasets for "Relic gravitational waves from the chiral plasma instability in the standard cosmological model"
<pre>This directory contains an index.html file with links to the run directories and idl plotting routines with secondary data for the other figures for the paper "Relic Gravitational Waves from the Chiral Plasma Instability in the Standard Cosmological Model". If anything turns out to be incomplete, please email brandenb@nordita.org.</pre>
Datasets for ``Chiral magnetohydrodynamics with zero total chirality''
<pre>This directory contains an index.html file with links to the run directories and idl plotting routines with secondary data for the other figures for the paper "Chiral Magnetohydrodynamics with Zero Total Chirality" by A. Brandenburg, K. Kamada, K. Mukaida, K. Schmitz, and J. Schober. If anything turns out to be incomplete, please email brandenb@nordita.org.</pre>
Elucidation of the Atroposelectivity in the Synthesis of Axially Chiral Thiohydantoin Derivatives
<p>Recently, Sarigul and Dogan have synthesized a number of enantiomerically enriched axially chiral atropoisomeric 2-thiohydantoins by the reaction of L-amino acid ester salts and <em>o</em>-aryl isothiocyanates in the presence of triethyl amine (TEA) in dichloromethane. The nonaxially chiral derivative 5-methyl-3-phenyl-2-thiohydantoin gave a racemic product whereas the axially chiral 5-methyl-3-<em>o</em>-bromophenyl-2-thiohydantoin was less prone to racemize at C<sub>5</sub> of the heterocyclic ring. In this study, we present a computational study (M06-2X/6-311+G(d,p) for C, H, O, N and S; M06-2X/6-311++G(3df,3pd) for Br) in order to propose plausible mechanisms for the racemization and cyclization steps for 2-thiohydantoin derivatives. The study includes rationalization based on steric as well as the electrostatic effects to elucidate the epimerization differences at C<sub>5</sub>.</p>
Raw data for the article "Enantioselective Carboetherification/Hydrogenation for the Synthesis of Amino Alcohols via a Catalytically-Formed Chiral Auxiliary"
<p>Raw NMR, MS, IR and HPLC data for the article "Enantioselective Carboetherification/Hydrogenation for the Synthesis of Amino Alcohols via a Catalytically-Formed Chiral Auxiliary" published in the Journal of the American Chemical Society, DOI: <a href="https://doi.org/10.1021/jacs.0c09177">https://doi.org/10.1021/jacs.0c09177</a></p> <p>The number of the folders correspond to compounds numbers in the article. All details concerning conditions and equipment for measurements can be found in the supporting information of the article.</p>
Chiral photoresponsive LCs - photoresponse in mesophase
<p>Supplementary video file for a manuscript entitled " Chiral photoresponsive liquid crystalline materials derived from 4´-pentyl-4-cyanobiphenyl (5-CB) "submitted to the special issue Photosensitive Liquid Crystals of Crystals (MDPI journal).</p>
Data for the article "Faster chiral versus collinear magnetic order recovery after optical excitation revealed by femtosecond XUV scattering"
<p>Data for the article "Faster chiral versus collinear magnetic order recovery after optical excitation revealed by femtosecond XUV scattering" (<a href="https://www.nature.com/articles/s41467-020-19613-z">Faster chiral versus collinear magnetic order recovery after optical excitation revealed by femtosecond XUV scattering | Nature Communications</a>) <a href="https://arxiv.org/abs/2002.03971">[2002.03971] Chiral versus collinear magnetic order dynamics: faster chiral recovery after optical excitation revealed by femtosecond XUV scattering (arxiv.org)</a></p>
Classifying Handedness in Chiral Nanomaterials Using Label Noise-Robust Deep Learning
<p>Images of individual Te chiral nanoparticles and labels of their handedness for classifier training.</p>
Epithelial cell chirality emerges through the dynamic concentric pattern of actomyosin cytoskeleton
<p>Supporting Information for</p> <p>Epithelial cell chirality emerges through the dynamic concentric pattern of actomyosin cytoskeleton</p> <p>Takaki Yamamoto, Tomoki Ishibashi, Yuko Mimori-Kiyosue, Sylvain Hiver, Naoko Tokushige, Mitsusuke Tarama, Masatoshi Takeichi, Tatsuo Shibata</p> <p>Tatsuo Shibata<br>Email: tatsuo.shibata@riken.jp</p> <p>Numerical data used for Figs. 1B, and C: </p> <p>Fig1B.csv,<br>Fig1C.csv</p> <p>Numerical data used for Fig. 1 figure supplement 1:</p> <p>Fig1S1_Collagen.csv,<br>Fig1S1_Fibronectin.csv,<br>Fig1S1_Non-coated.csv,<br>Fig1S1_PLL.csv</p> <p>Numerical data used for Figs. 2B, C and D: </p> <p>Fig2B.csv,<br>Fig2C_Blebbistatin.csv,<br>Fig2C_CK666.csv,<br>Fig2C_DMSO.csv,<br>Fig2C_Nocodazole.csv,<br>Fig2C_SMIFH2.csv,<br>Fig2D_DMSO.csv,<br>Fig2D_SMIFH2.csv</p> <p>Numerical data used for Fig. 2 figure supplement 2 A, D:</p> <p>Fig2S2A.csv,<br>Fig2S2D_NC.csv,<br>Fig2S2D_DAAM1_siRNA.csv,<br>Fig2S2D_DIAPH2_siRNA.csv</p> <p>Numerical data used for Fig. 2 figure supplement 3:</p> <p>Fig2S3A_NC.csv,<br>Fig2S3A_Myo2A_siRNA.csv,<br>Fig2S3A_Myo2B_siRNA.csv,<br>Fig2S3A_Myo2A_B_siRNA.csv,<br>Fig2S3B.csv</p> <p>Numerical data used for Fig. 2 figure supplement 4:</p> <p>Fig2S4A_NC.csv,<br>Fig2S4A_VCL_siRNA.csv,<br>Fig2S4B.csv</p> <p>Note: Fig2S2D_NC.csv, Fig2S3A_NC.csv and Fig2S4A_NC.csv represent data from the same control experiment.</p> <p>Numerical data used for Figs. 6C and D:<br>Fig6C.xls,<br>Fig6D_1.xls,<br>Fig6D_2.xls</p> <p>Numerical data used for Figs. 6 figure supplement 1:<br>Fig6S1I.xls,<br>Fig6S1J.xls</p> <p>Note: these data were also used in Figure 7 figure supplement 2A-H.</p> <p>Numerical data used for Figs. 8D and E:<br>Fig8DE.csv: </p> <p>FreeFEM++ script to perform the numerical computation used in Fig. 7 and matlab script for Fig 7 BCDFGH, and Fig. 7 figure supplement 2I: </p> <p>caco2ActiveChiralModel.edp,<br>PlotSimulationResults.m</p>
Direct observation of chirality-induced spin selectivity in electron donor–acceptor molecules. Open data set
<p>Data supporting the original figures 2 and 4 of the related publication.</p>
Control of Charge-Spin Interconversion in van der Waals Heterostructures with Chiral Charge Density Waves
Open the record for dataset details and reuse information.
Operando evidence on the chirality-enhanced oxygen evolution reaction in intrinsically chiral electrocatalysts
<p><span>Additional raw data files for manuscript </span>"Operando evidence on the chirality-enhanced oxygen evolution reaction in intrinsically chiral electrocatalysts"</p> <p>Felipe A. García-Pineda, a Jiahao Yu,a Camilo A. Mesa,b Sergi Plana-Ruiz,c Daniel Ruano,c<br>Yunchang Liang,d Magalí Lingenfelder,d;e Sixto Giménez,b and J. R. Galan-Mascaros, a; f</p> <p>Abstract:<br>Electrolytic hydrogen is identified as a crucial component in the desired decarbonisation of the chemical<br>industry, utilizing renewable energy to split water into hydrogen and oxygen. Water electrolysis<br>still requires important scientific advances to improve its performance and lower its costs. One of the<br>bottlenecks in this direction relates to the sluggish anodic oxygen evolution reaction (OER). Producing<br>anodes with competitive performance remains challenging due to the high energy loses and the<br>harsh working conditions typically imposed by this complex oxidation process. Recent advancements<br>point to spin polarization as an opportunity to enhance the kinetics of this spin-restricted reaction,<br>yielding the paramagnetic O2 molecule. One powerful strategy deals with the generation of chiral<br>catalytic surfaces, typically by surface functionalisation with chiral organic molecules, to promote<br>chiral-induced spin selectivity (CISS) effect during electron transfer. However, the relationship between<br>chirality and enhanced electrocatalysis has been established only from indirect experimental<br>evidences. In this work, we have exploited operando electrochemical and spectroscopic tools to confirm<br>the direct relationship between the faster OER kinetics and the optical activity of enantiopure<br>Fe-Ni metal oxides when compared with their achiral catalysts in alkaline conditions. Our results<br>show the participation of chiral species as reactive intermediates during the electrocatalytic reaction,<br>supporting the appearance of a mechanistic CISS enhancement. Furthermore, these intrinsically chiral<br>transition-metal oxides maintain their enhanced activity in full cell electrolyser architectures at<br>industrially relevant current densities.</p> <p>of Science and Technology (BIST), Av. Paisos Catalans 16, Tarragona, 43007, Spain<br>E-mail: fgarces@iciq.es; jrgalan@iciq.es<br>b Institute of Advanced Materials (INAM), Castelló, Spain, Universitat Jaume I, Av. de<br>Vicente Sos Baynat, Castelló 12006, Spain<br>c SRCIT-Universitat Rovira i Virgili, Avinguda Pa¨õsos Catalans 26, Tarragona, 43007,<br>Spain<br>d Max Planck-EPFL Laboratory for Molecular Nanoscience and Technology, École Polytechnique<br>Fédérale de Lausanne (EPFL), Lausanne, 1015, Switzerland<br>e Helvetia Institute for Science and Innovation, Wollerau, 8832, Switzerland<br>f ICREA, Passeig Lluis Companys, 23, Barcelona, 08010, Spain<br><br></p>
Data: The genesis of OH-stretching vibrational circular dichroism in chiral molecular crystals
<p>This data supplements our article "The genesis of OH-stretching vibrational circular dichroism in chiral molecular crystals"</p>
An aperiodic chiral tiling by topological molecular self-assembly
<p>Data used in preparation of publication 'An aperiodic chiral tiling by topological molecular self-assembly'</p>
Development of Ensemble Steric and Electrostatic Chirality (ESEC) descriptors for modelling chromatographic enantioseparations
<p>For example for the Excel file with the title "Borate_chiral_explicit_biased_charged_uncharged.xlsx":</p> <p>- In the first tab, titled "Exp_water_acn_biased_charge", you can find the biased chiral descriptors for the molecules in their pH 9 state, simulated in explicit solvent. </p> <p>- In the second tab, titled "Exp_water_acn_biased_uncharged", you can find the biased chiral descriptors for the molecules in their uncharged state, simulated in explicit solvent. </p> <p>- The third tab, titled "Chiral log alfaRS charge uncharge", includes the responses (log αRS and αRS), along with the retention times and retention factors (k) for each molecule. In addition, this tab contains the descriptors from both the first and the second tab.</p> <p>- The fourth and the fifth tabs present the experimental and predicted responses (log αRS in the fourth tab and αRS in the fifth tab) for the models that were built. </p> <p>The structure of the other files follows a similar pattern: the first tabs provide the descriptor values, followed by a tab containing the modelling information (response(s) and various descriptor sets) and finally, a tab is included with the predicted response values. </p>
E/Z Switchable Ring-closing Metathesis in 1,1′-Bis(but-3-enyl)ferrocenes: Synthesis and Characterization of Axially Chiral ansa[6]-Ferrocenes. Raw Diffraction Data.
<p>Diffraction data for article <em>E</em>/<em>Z</em> Switchable Ring-Closing Metathesis in 1,1′-Bis(but-3-enyl)ferrocenes: Synthesis and Characterization of Axially Chiral <em>ansa</em>[6]-Ferrocenes doi: <a href="https://doi.org/10.1021/acs.organomet.2c00163">10.1021/acs.organomet.2c00163</a>. The crystal structures have been deposited in CSD with CCDC numbers 2093772-2093775, 2094024-2094027 and 2119739.</p>
OAM sorted spectrum of a chiral pattern fabricated on a synthetic hologram
<p>here are the collected data of the spectra obtained from an OAM sorter used to study the beam generated from a spiral pattern. Further details on how we used this chiral patterns to confirms the versatility of the OAM spectrum in studying chiral patterns can be found at https://arxiv.org/abs/2110.03391</p>
Engineering of intrinsic chiral torques in magnetic thin films based on the Dzyaloshinskii-Moriya interaction
<p>Open data for <strong>Engineering of intrinsic chiral torques in magnetic thin films based on the Dzyaloshinskii-Moriya interaction</strong></p>
Raw data for the article "Asymmetric Cyclopropanation and Epoxidation via a Catalytically Formed Chiral Auxiliary"
<p>Raw NMR, HPLC, IR and MS data for the article "Asymmetric Cyclopropanation and Epoxidation via a Catalytically Formed Chiral Auxiliary" published in Angewandte Chemie, International Edition, DOI: </p> <p><a href="https://doi.org/10.1002/anie.202113925 ">https://doi.org/10.1002/anie.202113925 </a> </p> <p>The number of the folders correspond to compounds numbers in the article. All details concerning conditions and equipment for measurements can be found in the supporting information of the article.</p>
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
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DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.