Efficient micromagnetic modelling of spin-transfer torque and spin-orbit torque
While the spin-diffusion model is considered one of the most complete and accurate tools for the description of spin transport and spin torque, its solution in the context of dynamical micromagnetic simulations is numerically expensive. We propose a procedure to retrieve the free parameters of a sim...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
AIP Publishing LLC
2018-05-01
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| Series: | AIP Advances |
| Online Access: | http://dx.doi.org/10.1063/1.5006561 |
| _version_ | 1811338640533487616 |
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| author | Claas Abert Florian Bruckner Christoph Vogler Dieter Suess |
| author_facet | Claas Abert Florian Bruckner Christoph Vogler Dieter Suess |
| author_sort | Claas Abert |
| collection | DOAJ |
| description | While the spin-diffusion model is considered one of the most complete and accurate tools for the description of spin transport and spin torque, its solution in the context of dynamical micromagnetic simulations is numerically expensive. We propose a procedure to retrieve the free parameters of a simple macro-spin like spin-torque model through the spin-diffusion model. In case of spin-transfer torque the simplified model complies with the model of Slonczewski. A similar model can be established for the description of spin-orbit torque. In both cases the spin-diffusion model enables the retrieval of free model parameters from the geometry and the material parameters of the system. Since these parameters usually have to be determined phenomenologically through experiments, the proposed method combines the strength of the diffusion model to resolve material parameters and geometry with the high performance of simple torque models. |
| first_indexed | 2024-04-13T18:14:09Z |
| format | Article |
| id | doaj.art-4d8c2fe730194ef1a95f38fc8baa221e |
| institution | Directory Open Access Journal |
| issn | 2158-3226 |
| language | English |
| last_indexed | 2024-04-13T18:14:09Z |
| publishDate | 2018-05-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | AIP Advances |
| spelling | doaj.art-4d8c2fe730194ef1a95f38fc8baa221e2022-12-22T02:35:45ZengAIP Publishing LLCAIP Advances2158-32262018-05-0185056008056008-610.1063/1.5006561032892ADVEfficient micromagnetic modelling of spin-transfer torque and spin-orbit torqueClaas Abert0Florian Bruckner1Christoph Vogler2Dieter Suess3Christian Doppler Laboratory of Advanced Magnetic Sensing and Materials, Faculty of Physics, University of Vienna, AustriaChristian Doppler Laboratory of Advanced Magnetic Sensing and Materials, Faculty of Physics, University of Vienna, AustriaFaculty of Physics, University of Vienna, AustriaChristian Doppler Laboratory of Advanced Magnetic Sensing and Materials, Faculty of Physics, University of Vienna, AustriaWhile the spin-diffusion model is considered one of the most complete and accurate tools for the description of spin transport and spin torque, its solution in the context of dynamical micromagnetic simulations is numerically expensive. We propose a procedure to retrieve the free parameters of a simple macro-spin like spin-torque model through the spin-diffusion model. In case of spin-transfer torque the simplified model complies with the model of Slonczewski. A similar model can be established for the description of spin-orbit torque. In both cases the spin-diffusion model enables the retrieval of free model parameters from the geometry and the material parameters of the system. Since these parameters usually have to be determined phenomenologically through experiments, the proposed method combines the strength of the diffusion model to resolve material parameters and geometry with the high performance of simple torque models.http://dx.doi.org/10.1063/1.5006561 |
| spellingShingle | Claas Abert Florian Bruckner Christoph Vogler Dieter Suess Efficient micromagnetic modelling of spin-transfer torque and spin-orbit torque AIP Advances |
| title | Efficient micromagnetic modelling of spin-transfer torque and spin-orbit torque |
| title_full | Efficient micromagnetic modelling of spin-transfer torque and spin-orbit torque |
| title_fullStr | Efficient micromagnetic modelling of spin-transfer torque and spin-orbit torque |
| title_full_unstemmed | Efficient micromagnetic modelling of spin-transfer torque and spin-orbit torque |
| title_short | Efficient micromagnetic modelling of spin-transfer torque and spin-orbit torque |
| title_sort | efficient micromagnetic modelling of spin transfer torque and spin orbit torque |
| url | http://dx.doi.org/10.1063/1.5006561 |
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