Tailoring spin-orbit torque in diluted magnetic semiconductors

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Applied Physics Letters, ISSN: 0003-6951, Vol: 102, Issue: 19

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arXiv Id:
1211.0867, arXiv:1211.0867
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Li, Hang, Wang, Xuhui, Doǧan, Fatih, Manchon, Aurelien
AIP Publishing
Physics and Astronomy
article description
We study the spin orbit torque arising from an intrinsic linear Dresselhaus spin-orbit coupling in a single layer III-V diluted magnetic semiconductor. We investigate the transport properties and spin torque using the linear response theory, and we report here: (1) a strong correlation exists between the angular dependence of the torque and the anisotropy of the Fermi surface; (2) the spin orbit torque depends nonlinearly on the exchange coupling. Our findings suggest the possibility to tailor the spin orbit torque magnitude and angular dependence by structural design. © 2013 AIP Publishing LLC.

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