Rippard, W.
, Russek, S.
and Pufall, M.
(2014),
Zero-field spin-transfer oscillators combining in-plane and out-of-plane magnetized layers, Japanese Journal of Applied Physics, [online], https://doi.org/10.7567/APEX.7.043001
(Accessed October 8, 2024)
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Zero-field spin-transfer oscillators combining in-plane and out-of-plane magnetized layers
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Abstract
Excited magnetization dynamics in a spin-valve device consisting of an in-plane polarizer and an out-of-plane free layer were studied numerically. In the case where the free layer is assumed to lack any in-plane anisotropy components, a finite external field is required to generate steady-state dynamics, in agreement with previous reports. We demonstrate that this constraint can be removed and precession can be stabilised in zero applied field by introducing an additional in-plane anisotropy axis. Moreover, the in-plane anisotropy offers an additional degree of freedom for tuning the frequency response of the device.Citation
Japanese Journal of Applied Physics
Volume
7
Issue
4
Pub Type
Journals
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Keywords
spintronics
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Created March 20, 2014, Updated November 10, 2018