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{
"metadata": {
"edited_by": 576,
"owner": 95,
"_oai": {
"id": "oai:materialscloud.org:2226"
},
"description": "Spintronics applications for high-density non-volatile memories require simultaneous optimization of the perpendicular magnetic anisotropy (PMA) and current-induced magnetization switching. These properties determine, respectively, the thermal stability of a ferromagnetic memory cell and a low operation power consumption, which are mutually incompatible with the spin transfer torque as the driving force for the switching. Here, we demonstrate a strategy of alloy engineering to overcome this obstacle by using electrically induced orbital currents instead of spin currents. A non-equilibrium orbital density generated in paramagnetic \u03b3-FeMn flows into CoPt coupled to the magnetization through spin-orbit interaction, ultimately creating an orbital torque. Controlling the atomic arrangement of Pt and Co by structural phase transition, we show that the propagation length of the transferred angular momentum can be modified concurrently with the PMA strength. We find a strong correlation to the phase transition-induced changes of d orbitals with m\u2097 = \u00b11 and m\u2097 = \u00b12 character. The close link of orbital hybridization to the dynamic orbital response and magnetic properties offers new possibilities to realize optimally designed orbitronics memory and logic applications.\nThis dataset contains the DFT calculations for the electronic structure of CoPt in L1\u2081 and A1 structures that are discussed the corresponding publication.",
"mcid": "2024.90",
"id": "2226",
"license": "Creative Commons Attribution 4.0 International",
"license_addendum": null,
"references": [
{
"citation": "T Gao et al, in preparation (2023)",
"type": "Preprint",
"comment": "Paper where the data is discussed"
},
{
"citation": "The JuKKR developers, JuDFTteam/JuKKR: v3.6 (v3.6), Zenodo. (2022)",
"type": "Software",
"url": "https://doi.org/10.5281/zenodo.7284739",
"comment": "Source code of the JuKKR code",
"doi": "10.5281/zenodo.7284739"
},
{
"citation": "P. R\u00fc\u00dfmann, F. Bertoldo, J. Br\u00f6der, J. Wasmer, R. Mozumder, J. Chico, and S. Bl\u00fcgel, Zenodo (2021)",
"type": "Software",
"url": "https://doi.org/10.5281/zenodo.3628251",
"comment": "Source code for the AiiDA-KKR plugin",
"doi": "10.5281/zenodo.3628251"
},
{
"citation": "P. R\u00fc\u00dfmann, F. Bertoldo, and S. Bl\u00fcgel, The AiiDA-KKR plugin and its application to high-throughput impurity embedding into a topological insulator. npj Comput Mater 7, 13 (2021)",
"type": "Journal reference",
"url": "https://doi.org/10.1038/s41524-020-00482-5",
"comment": "AiiDA-KKR method paper",
"doi": "10.1038/s41524-020-00482-5"
}
],
"doi": "10.24435/materialscloud:m4-b5",
"keywords": [
"density-functional theory",
"Orbital torque",
"orbitronics"
],
"contributors": [
{
"affiliations": [
"Department of Applied Physics and Physico-Informatics, Keio University, Yokohama 223-8522, Japan",
"State Key Lab of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, Hubei, PR China",
"Keio Institute of Pure and Applied Science, Keio University, Yokohama 223-8522, Japan"
],
"familyname": "Gao",
"givennames": "Tenghua"
},
{
"affiliations": [
"Institute of Theoretical Physics and Astrophysics, University of W\u00fcrzburg, D-97074, Germany",
"Peter Gr\u00fcnberg Institut and Institute for Advanced Simulation (PGI-1/IAS-1), Forschungszentrum J\u00fclich and JARA, D-52425 J\u00fclich"
],
"familyname": "R\u00fc\u00dfmann",
"email": "philipp.ruessmann@uni-wuerzburg.de",
"givennames": "Philipp"
},
{
"affiliations": [
"Department of Materials Science and Engineering, Tokyo Institute of Technology, Tokyo 152-8552, Japan"
],
"familyname": "Wang",
"givennames": "Qianwen"
},
{
"affiliations": [
"Department of Applied Physics and Physico-Informatics, Keio University, Yokohama 223-8522, Japan"
],
"familyname": "Hayashi",
"givennames": "Hiroki"
},
{
"affiliations": [
"Peter Gr\u00fcnberg Institut and Institute for Advanced Simulation (PGI-1/IAS-1), Forschungszentrum J\u00fclich and JARA, D-52425 J\u00fclich",
"Institute of Physics, Johannes Gutenberg University Mainz, 55099 Mainz, Germany"
],
"familyname": "Go",
"givennames": "Dongwook"
},
{
"affiliations": [
"State Key Lab of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, Hubei, PR China"
],
"familyname": "Zhang",
"givennames": "Song"
},
{
"affiliations": [
"State Key Lab of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, Hubei, PR China"
],
"familyname": "Harumoto",
"givennames": "Takashi"
},
{
"affiliations": [
"State Key Lab of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, Hubei, PR China"
],
"familyname": "Tu",
"givennames": "Rong"
},
{
"affiliations": [
"State Key Lab of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, Hubei, PR China"
],
"familyname": "Zhang",
"givennames": "Lianmeng"
},
{
"affiliations": [
"Institute of Physics, Johannes Gutenberg University Mainz, 55099 Mainz, Germany",
"Peter Gr\u00fcnberg Institut and Institute for Advanced Simulation (PGI-1/IAS-1), Forschungszentrum J\u00fclich and JARA, D-52425 J\u00fclich"
],
"familyname": "Mokrousov",
"givennames": "Yuriy"
},
{
"affiliations": [
"Department of Materials Science and Engineering, Tokyo Institute of Technology, Tokyo 152-8552, Japan"
],
"familyname": "Shi",
"givennames": "Ji"
},
{
"affiliations": [
"Department of Applied Physics and Physico-Informatics, Keio University, Yokohama 223-8522, Japan",
"Keio Institute of Pure and Applied Science, Keio University, Yokohama 223-8522, Japan",
"Center for Spintronics Research Network, Keio University, Yokohama 223-8522, Japan"
],
"familyname": "Ando",
"givennames": "Kazuya"
}
],
"conceptrecid": "1919",
"version": 2,
"publication_date": "Jun 20, 2024, 15:02:53",
"is_last": true,
"status": "published",
"_files": [
{
"size": 6863,
"checksum": "md5:0a90a4f250222def804fff66921abbc0",
"description": "Description of the dataset",
"key": "README.txt"
},
{
"size": 4652,
"checksum": "md5:bd6e507872480148722a824cb94dc886",
"description": "Python environment",
"key": "requirements.txt"
},
{
"size": 715186570,
"checksum": "md5:644a8babbc16464e42ecd5df624245d4",
"description": "AiiDA export file containing the simulation data",
"key": "export.aiida"
},
{
"size": 36969,
"checksum": "md5:cbe9fe456fd73dcabd293a26db37d0fc",
"description": "raw data of post-processed L.s data presented in Fig.5 for A1 structure",
"key": "data_LdotS_A1.csv"
},
{
"size": 36922,
"checksum": "md5:f21eea65a6df04c3cc5c164429bcf14b",
"description": "raw data of post-processed L.s data presented in Fig.5 for L1_1 structure",
"key": "data_LdotS_L1_1.csv"
}
],
"title": "DFT calculations of the electronic structure of CoPt in L1\u2081 and A1 structures"
},
"id": "2226",
"updated": "2024-06-20T13:02:53.155315+00:00",
"created": "2024-06-20T08:07:37.248719+00:00",
"revision": 3
}