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First-Principles Calculation of the Non-Adiabatic Spin Transfer Torque in Ni and Fe

Published

Author(s)

Keith Gilmore, Ion Garate, Allan H. MacDonald, Mark D. Stiles

Abstract

The magnetization dynamics of a ferromagnet subjected to an electrical current are given by an extension of the Landau-Lifshitz-Gilbert equation that contains two additional terms, the adiabatic and non-adiabatic spin-transfer torques. First-principles calculations of the non-adiabatic spin-transfer torque parameter beta for bcc iron and fcc nickel show that beta is related to and on the same order as alpha, the damping constant, but is distinct from it.
Citation
Physical Review B
Volume
84
Issue
22

Keywords

spin-transfer torque, spin-orbit coupling, spin transport, current-induced domain wall motion, magnetic nanowire, nanomagnetics, transition metals, magnetic damping, Landau-Lifshitz

Citation

Gilmore, K. , Garate, I. , MacDonald, A. and Stiles, M. (2011), First-Principles Calculation of the Non-Adiabatic Spin Transfer Torque in Ni and Fe, Physical Review B, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=909728 (Accessed May 27, 2024)

Issues

If you have any questions about this publication or are having problems accessing it, please contact reflib@nist.gov.

Created December 15, 2011, Updated October 12, 2021