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Spin–orbit torque-assisted switching in magnetic insulator thin films with perpendicular magnetic anisotropy
As an in-plane charge current flows in a heavy metal film with spin–orbit coupling, it produces a torque on and thereby switches the magnetization in a neighbouring ferromagnetic metal film. Such spin–orbit torque (SOT)-induced switching has been studied extensively in recent years and has shown hig...
Autores principales: | , , , , , , , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2016
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5025772/ https://www.ncbi.nlm.nih.gov/pubmed/27581060 http://dx.doi.org/10.1038/ncomms12688 |
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author | Li, Peng Liu, Tao Chang, Houchen Kalitsov, Alan Zhang, Wei Csaba, Gyorgy Li, Wei Richardson, Daniel DeMann, August Rimal, Gaurab Dey, Himadri Jiang, J. S. Porod, Wolfgang Field, Stuart B. Tang, Jinke Marconi, Mario C. Hoffmann, Axel Mryasov, Oleg Wu, Mingzhong |
author_facet | Li, Peng Liu, Tao Chang, Houchen Kalitsov, Alan Zhang, Wei Csaba, Gyorgy Li, Wei Richardson, Daniel DeMann, August Rimal, Gaurab Dey, Himadri Jiang, J. S. Porod, Wolfgang Field, Stuart B. Tang, Jinke Marconi, Mario C. Hoffmann, Axel Mryasov, Oleg Wu, Mingzhong |
author_sort | Li, Peng |
collection | PubMed |
description | As an in-plane charge current flows in a heavy metal film with spin–orbit coupling, it produces a torque on and thereby switches the magnetization in a neighbouring ferromagnetic metal film. Such spin–orbit torque (SOT)-induced switching has been studied extensively in recent years and has shown higher efficiency than switching using conventional spin-transfer torque. Here we report the SOT-assisted switching in heavy metal/magnetic insulator systems. The experiments used a Pt/BaFe(12)O(19) bilayer where the BaFe(12)O(19) layer exhibits perpendicular magnetic anisotropy. As a charge current is passed through the Pt film, it produces a SOT that can control the up and down states of the remnant magnetization in the BaFe(12)O(19) film when the film is magnetized by an in-plane magnetic field. It can reduce or increase the switching field of the BaFe(12)O(19) film by as much as about 500 Oe when the film is switched with an out-of-plane field. |
format | Online Article Text |
id | pubmed-5025772 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-50257722016-09-23 Spin–orbit torque-assisted switching in magnetic insulator thin films with perpendicular magnetic anisotropy Li, Peng Liu, Tao Chang, Houchen Kalitsov, Alan Zhang, Wei Csaba, Gyorgy Li, Wei Richardson, Daniel DeMann, August Rimal, Gaurab Dey, Himadri Jiang, J. S. Porod, Wolfgang Field, Stuart B. Tang, Jinke Marconi, Mario C. Hoffmann, Axel Mryasov, Oleg Wu, Mingzhong Nat Commun Article As an in-plane charge current flows in a heavy metal film with spin–orbit coupling, it produces a torque on and thereby switches the magnetization in a neighbouring ferromagnetic metal film. Such spin–orbit torque (SOT)-induced switching has been studied extensively in recent years and has shown higher efficiency than switching using conventional spin-transfer torque. Here we report the SOT-assisted switching in heavy metal/magnetic insulator systems. The experiments used a Pt/BaFe(12)O(19) bilayer where the BaFe(12)O(19) layer exhibits perpendicular magnetic anisotropy. As a charge current is passed through the Pt film, it produces a SOT that can control the up and down states of the remnant magnetization in the BaFe(12)O(19) film when the film is magnetized by an in-plane magnetic field. It can reduce or increase the switching field of the BaFe(12)O(19) film by as much as about 500 Oe when the film is switched with an out-of-plane field. Nature Publishing Group 2016-09-01 /pmc/articles/PMC5025772/ /pubmed/27581060 http://dx.doi.org/10.1038/ncomms12688 Text en Copyright © 2016, The Author(s) http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
spellingShingle | Article Li, Peng Liu, Tao Chang, Houchen Kalitsov, Alan Zhang, Wei Csaba, Gyorgy Li, Wei Richardson, Daniel DeMann, August Rimal, Gaurab Dey, Himadri Jiang, J. S. Porod, Wolfgang Field, Stuart B. Tang, Jinke Marconi, Mario C. Hoffmann, Axel Mryasov, Oleg Wu, Mingzhong Spin–orbit torque-assisted switching in magnetic insulator thin films with perpendicular magnetic anisotropy |
title | Spin–orbit torque-assisted switching in magnetic insulator thin films with perpendicular magnetic anisotropy |
title_full | Spin–orbit torque-assisted switching in magnetic insulator thin films with perpendicular magnetic anisotropy |
title_fullStr | Spin–orbit torque-assisted switching in magnetic insulator thin films with perpendicular magnetic anisotropy |
title_full_unstemmed | Spin–orbit torque-assisted switching in magnetic insulator thin films with perpendicular magnetic anisotropy |
title_short | Spin–orbit torque-assisted switching in magnetic insulator thin films with perpendicular magnetic anisotropy |
title_sort | spin–orbit torque-assisted switching in magnetic insulator thin films with perpendicular magnetic anisotropy |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5025772/ https://www.ncbi.nlm.nih.gov/pubmed/27581060 http://dx.doi.org/10.1038/ncomms12688 |
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