Lo Conte, R, Hrabec, A, Mihai, AP et al. (5 more authors) (2014) Spin-orbit torque-driven magnetization switching and thermal effects studied in Ta\CoFeB\MgO nanowires. Applied Physics Letters, 105 (12). 122404. ISSN 0003-6951
Abstract
We demonstrate magnetization switching in out-of-plane magnetized Ta\CoFeB\MgO nanowires by current pulse injection along the nanowires, both with and without a constant and uniform magnetic field collinear to the current direction. We deduce that an effective torque arising from spin-orbit effects in the multilayer drives the switching mechanism. While the generation of a component of the magnetization along the current direction is crucial for the switching to occur, we observe that even without a longitudinal field thermally generated magnetization fluctuations can lead to switching. Analysis using a generalized Néel-Brown model enables key parameters of the thermally induced spin-orbit torques-driven switching process to be estimated, such as the attempt frequency and the effective energy barrier.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2014, American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Physics and Astronomy (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 06 May 2015 14:58 |
Last Modified: | 16 Jan 2018 23:43 |
Published Version: | http://dx.doi.org/10.1063/1.4896225 |
Status: | Published |
Publisher: | American Institute of Physics |
Identification Number: | 10.1063/1.4896225 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:84480 |