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639 results for “spin”
Investigations on single and multi-grain optically stimulated luminescence (OSL) sensitivity and electron spin resonance (ESR) signals in quartz derived from sandstones: Insights on provenance of quartz in ancient depositional systems
<p><span>Trapped charge techniques of luminescence and electron spin resonance (ESR) are classic tools for dating Quaternary deposits. Over the past decade, these techniques have been routinely applied to investigate provenance and /or the sedimentary history of grains based on the different luminescence and ESR characteristics of quartz. Of these, optically stimulated luminescence (OSL) sensitivity is one of the most widely investigated parameter for luminescence-based provenance approach. A majority of studies on this parameter are based on evaluation of multi-grain OSL sensitivity of the samples. This is particularly concerning because single-grain quartz luminescence studies have shown that the luminescence signal of a multi-grain aliquot is contributed by less than ~1-10% of the total grains. Since the sole criteria for discrimination of sources based on luminescence sensitivity relies on its intensity, therefore the results based on multi-grain analysis will most likely be skewed depending on the proportion and ‘brightness’ of a few grains. This demands a need to evaluate the potential of single-grain quartz OSL sensitivity in provenance studies. In this study, we investigate single and multi-grain quartz OSL sensitivities from compositionally different sandstones with well-characterised sources based on U-Pb zircon ages. We further complement this analysis with characterisation of ESR centres commonly used in quartz provenance, namely E’<sub>1</sub> and [AlO<sub>4</sub>]<sup>0</sup> centres. Our study shows that single-grain quartz OSL sensitivity can help distinguish between sediments that have a predominant input from a single source as compared to those with contribution from multiple sources, which otherwise cannot be inferred from multi-grain studies. Moreover, our results on characterisation of quartz-based ESR intensity of E’<sub>1</sub> and saturated [AlO<sub>4</sub>]<sup>0</sup> centres successfully differentiates between sandstones and further complements the luminescence-based characterisation. </span></p>
Dataset for publication "Altermagnetic lifting of Kramers spin degeneracy", Nature volume 626, pages 517–522 (2024), https://doi.org/10.1038/s41586-023-06907-7
<p>Dataset for publication https://doi.org/10.1038/s41586-023-06907-7, "Altermagnetic lifting of Kramers spin degeneracy", Nature volume 626, pages 517–522 (2024). Dataset include input and potential files for calculation on SPR-KKR package 8.6. </p> <p>Detailed descriptions are in the README text documents in subdirectories.</p>
Research Data - Collective Spin-Wave Dynamics in Gyroid Ferromagnetic Nanostructures
<p>Source data from ferromagnetic resonance experiments and micromagnetic simulations in <em>tetmag</em> software (<a href="https://github.com/R-Hertel/tetmag">https://github.com/R-Hertel/tetmag</a>), used in the paper "Collective Spin-Wave Dynamics in Gyroid Ferromagnetic Nanostructures"<em> </em>in <em>ACS Applied Materials & Interfaces </em>(<a href="https://doi.org/10.1021/acsami.4c02366">https://doi.org/10.1021/acsami.4c02366</a>).</p>
Measured and analyzed raw data for publication "Nanoscale spin ordering and spin screening effects in tunnel ferromagnetic Josephson junctions" (doi: https://doi.org/10.1038/s43246-024-00497-1)
<p>The data provided by this dataset are the raw data published in the paper "Nanoscale spin ordering and spin screening effects in tunnel ferromagnetic Josephson junctions" (doi: https://www.nature.com/articles/s43246-024-00497-1). </p> <p>It can be found:</p> <p>-In the folder figure2_IV, the current-voltage characteristics (IV) of standard Superconductor-Insulator-Superconductor Josephson Junctions (SIS JJ) and of Superconductor-Insulator-Ferromagnet-thin superconductor- Superconductor Josephson Junctions (SIsFS JJ) at 10 mK </p> <p>-In the folder figure2_IVH, the magnetic dependence of the critical current of the SIsS and SIsFS at 10 mK</p> <p>-In the folder figure3_IVHT, the magnetic dependence of the critical current of the SIsFS as a function of the temperature T</p> <p>-In the figure4_gamma, the experimental and theoretical dependence of \gamma, i.e., the magnetic moment of the S-layers normalized to the F-layer in absolute value, as a function of the characteristic energy of the inverse proximity effect</p>
Dataset of the publication: Spin-crossover nanoparticles anchored on MoS2 layers for heterostructures with tunable strain driven by thermal or light-induced spin switching
<p>Dataset of the publication: </p> <div>Spin-crossover nanoparticles anchored on MoS2 layers for heterostructures with tunable strain driven by thermal or light-induced spin switching</div> <div> <div>https://doi.org/10.1038/s41557-021-00795-y</div> <div>R. Torres-Cavanillas, M. Morant-Giner, G. Escorcia-Ariza, J. Dugay, J. Canet-Ferrer, S. Tatay, S. Cardona-Serra, M. Giménez-Marqués, M. Galbiati, A. Forment-Aliaga, E. Coronado, <em>Nat Chem</em> <strong>2021</strong>, <em>13</em>, 1101.</div> </div>
Dataset of the publication: Hybrid Heterostructures of a Spin Crossover Coordination Polymer on MoS2: Elucidating the Role of the 2D Substrate. Small 2023, 19, e2304954.
<p><span> Dataset of the publication: Hybrid Heterostructures of a Spin Crossover Coordination Polymer on MoS2: Elucidating the Role of the 2D Substrate.</span></p> <p><span><span>A. Núñez-López, R. Torres-Cavanillas, M. Morant-Giner, N. Vassilyeva, R. Mattana, S. Tatay, P. Ohresser, E. Otero, E. Fonda, M. Paulus, V. Rubio-Giménez, A. Forment-Aliaga, E. Coronado, <em>Small</em> <strong>2023</strong>, <em>19</em>, e2304954.</span> </span></p> <p><span><span>doi: 10.1002/smll.202304954</span></span></p> <p><span><span><span>10.1002/smll.202304954</span><span>10.1002/smll.202304954<span>10.1002/smll.202304954</span></span></span></span></p>
Dataset of the publication: Dataset of the publication: Chiral spin-crossover complexes based on an enantiopure Schiff base ligand with three chiral carbon centers. Dalton Trans. 2024, 53, 10637.
<p><span><span><span>Dataset of the publication: Chiral spin-crossover complexes based on an enantiopure Schiff base ligand with three chiral carbon centers<br></span></span></span></p> <p><span><span> A. Regueiro, V. García-López, A. Forment-Aliaga, M. Clemente-León, <em>Dalton Trans.</em> <strong>2024</strong>, <em>53</em>, 10637. </span> </span></p> <p><span><span>doi: 10.1039/d4dt00924j</span></span></p>
Dataset of the publication: Strain Switching in van der Waals Heterostructures Triggered by a Spin-Crossover Metal–Organic Framework
<p>Dataset of the publication: Strain Switching in van der Waals Heterostructures Triggered by a Spin-Crossover Metal–Organic Framework</p> <p>DOI: 10.1002/adma.202110027</p> <p>Boix-Constant, Carla; Garcia-Lopez, Victor; Navarro-Moratalla, Efren; Clemente-Leon, Miguel; Zafra, Jose Luis; Casado, Juan; Guinea, Francisco; Manas-Valero, Samuel; Coronado, Eugenio</p> <p> Adv. Mater. 34, 2110027 (2022)</p>
Dataset of the publication: Redox and guest tunable spin-crossover properties in a polymeric polyoxometalate
<p>Dataset of the publication: Redox and guest tunable spin-crossover properties in a polymeric polyoxometalate</p> <p>DOI: 10.1039/d2sc05800f</p> <p>Palacios-Corella, M; García-López, V; Waerenborgh, JC; Vieira, BJC; Espallargas, GM; Clemente-León, M; Coronado, E</p> <p>Chem. Sci., 2023,14, 3048-3055</p>
Dataset of the publication: Iron(II) Complexes of 2,6-Di[4-(ethylcarboxy)pyrazol-1-yl]pyridine with Reversible Guest-Modulated Spin-Crossover Behavior
<p>Dataset of the publication: Iron(II) Complexes of 2,6-Di[4-(ethylcarboxy)pyrazol-1-yl]pyridine with Reversible Guest-Modulated Spin-Crossover Behavior</p> <p>DOI: 10.1021/acs.cgd.2c01524</p> <p>V. García-López, H. El Mansour El Jastimi, J. Juráková, M. Clemnte-León, E. Coronado</p> <p><em>Cryst. Growth Des. 2023, 23, 4, 2730–2738</em></p>
Dataset of the publication: Probing the spin dimensionality in single-layer CrSBr van der Waals heterostructures by magneto-transport measurements
<p>Dataset of the publication: Probing the spin dimensionality in single-layer CrSBr van der Waals heterostructures by magneto-transport measurements</p> <p>DOI: 10.1002/adma.202204940</p> <p>C. Boix-Constant, S. Mañas-Valero, A. M. Ruiz, A. Rybakov, K. A. Konieczny, S. Pillet, J. J. Baldoví, E. Coronado</p> <p>Adv. Mater., 34, 2204940 (2022)</p>
Dataset of the publication: Tailoring spin waves in 2D transition metal phosphorus trichalcogenides via atomic-layer substitution
<p>Dataset of the publication: Tailoring spin waves in 2D transition metal phosphorus trichalcogenides via atomic-layer substitution</p> <p>DOI: 10.1039/d2dt02482a</p> <p>A. M. Ruiz, DL. Esteras, A. Rybakov, J. J. Baldov </p> <p>Dalton Trans., 54, 44, 16816-16823 (2022)</p>
Dataset of the publication: Unlocking room-temperature bistable spin transition at the nanoscale: the synthesis of core@shell [Fe(NH2trz)3(NO3)2]@SiO2 nanoparticles
<p>Dataset of the publication: Unlocking room-temperature bistable spin transition at the nanoscale: the synthesis of core@shell [Fe(NH2trz)3(NO3)2]@SiO2 nanoparticles</p> <p>DOI: 10.1039/d4dt00911h</p> <p>A. Regueiro, M. Marti-Carrascosa, R. Torres-Cavanillas, E. Coronado </p> <p>Dalton Trans., 53, 20, 8764-8771 (2024)</p>
Dataset of the publication: Spin-crossover tuning of the luminescence in 2D Hofmann-type compounds in bulk and exfoliated flakes
<p>Dataset of the publication: Spin-crossover tuning of the luminescence in 2D Hofmann-type compounds in bulk and exfoliated flakes</p> <p>DOI: 10.1039/d3tc03693f</p> <p>V. García-López, F. Marques-Moros, J. Troya, J. Canet-Ferrer, M. Clemente. León, E. Coronado</p> <p>J. Mater. Chem. C, 12, 161-169 (2024)</p>
Dataset of the publication: Sublimable complexes with spin switching: Chemical design, processing as thin films and integration in graphene-based devices
<p>Dataset of the publication: Sublimable complexes with spin switching: Chemical design, processing as thin films and integration in graphene-based devices</p> <p>DOI: 10.1039/d2tc04120k</p> <p>M. Guevara-Edo, F. J. Valverde-Muñoz, R. Cordoba, M. C. Muñoz, J. Herrero-Martín, J. A. Real, E. Coronado</p> <p>J. Mater. Chem. C, 11, 24, 8107-8120 (2023)</p>
Dataset of the publication: Design and processing as ultrathin films of a sublimable Iron(II) spin crossover material exhibiting efficient and fast light-induced spin transition
<p>Dataset of the publication: Design and processing as ultrathin films of a sublimable Iron(II) spin crossover material exhibiting efficient and fast light-induced spin transition</p> <p>DOI: 10.1021/acs.chemmater.3c01704</p> <p>M. Gavara-Edo, F. J. Valverde-Muñoz, M. C. Muñoz, S. Elidrissi, F. Marques-Moros, J. Herrero-Martín, K. Znovjyak, M. Seredyuk, J. A. Real, E. Coronado <br><br>Chem. Mater., 35, 22, 9591-9602 (2023)</p>
Decoupling of Spin Decoherence Paths near Zero Magnetic Field
<p>We demonstrate a method to quantify and manipulate nuclear spin decoherence mechanisms that are active in zero to ultralow magnetic fields. These include (i) nonadiabatic switching of spin quantization axis due to residual background fields and (ii) scalar pathways due to through-bond couplings between <sup>1</sup>H and heteronuclear spin species, such as <sup>2</sup>H used partially as an isotopic substitute for <sup>1</sup>H. Under conditions of free evolution, scalar relaxation due to <sup>2</sup>H can significantly limit nuclear spin polarization lifetimes and thus the scope of magnetic resonance procedures near zero field. It is shown that robust trains of pulsed dc magnetic fields that apply π flip angles to one or multiple spin species may switch the effective symmetry of the nuclear spin Hamiltonian, imposing decoupled or coupled dynamic regimes on demand. The method should broaden the spectrum of hyperpolarized biomedical contrast-agent compounds and hyperpolarization procedures that are used near zero field.</p> <p>Entry contains processed experimental data for Figures 4-5 of the main paper, and Figures 2-5 of the Supporting Information.</p>
Atomistic spin dynamics simulations of iron and cobalt
<p>Atomistic spin dynamics (ASD) simulations of ultrafast demagnetization in ferromagnetic iron and cobalt. The ASD simulations here are energy-conserving, which means that energy flow into and out of the spin system is considered.</p> <p>The dataset contains simulations at four different pump laser fluences for iron and six different fluences for cobalt. The excitation was assumed to be homogeneous throughout the simulated volume.</p> <p>The heat capacities and electron-phonon coupling parameters which were used in the ASD simulations are provided in the folder "heat capacities and G_ep".</p> <p>More information is available here:<br> - https://arxiv.org/abs/2110.00525<br> - Zahn et al. Phys. Rev. Research 3, 023032 (2021)<br> https://journals.aps.org/prresearch/abstract/10.1103/PhysRevResearch.3.023032</p> <p> </p>
Real-space imaging of phase transitions in bridged artificial kagome spin ice
<p>Open data to "Real-space imaging of phase transitions in bridged artificial kagome spin ice", published in Nature Physics (2022), https://www.nature.com/articles/s41567-022-01564-5</p>
Numerical Evaluation of Spin Foam Amplitudes beyond simplices
<p>Dataset containing intertwiners and vertex amplitude evaluations for cuboid and frustum data associated with the paper arXiv:2201.09902.</p> <p>Data comes in two groups, one for cuboid boundary data, one for frustum boundary data of the coherent vertex amplitude.</p> <p>Intertwiner data are stored as text files, where the name of the files contain the three representations necessary to specify either cuboid or frustum intertwiners.</p> <p>Folders results contain the evaluations of vertex amplitudes. Again, the files contain all representations necessary to specify the hypercuboid (six representations) or hyperfrustum (three representations). See the paper for more details.</p> <p>(To get the actual values of the spins, they need to be devided by 2.)</p> <p>Code to automatically read in the intertwiner files and compute the vertex amplitude can be found at: https://github.com/CourtA96/SpinfoamAmplitudesOfCuboidsAndFrustra</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.