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Spin-polarised currents and magnetic domain walls

Marrows, C.H. (2005) Spin-polarised currents and magnetic domain walls. Advances in Physics, 54 (8). pp. 585-713. ISSN 1460-6976

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Abstract

Electrical currents flowing in ferromagnetic materials are spin-polarised as a result of the spin-dependent band structure. When the spatial direction of the polarisation changes, in a domain structure, the electrons must somehow accommodate the necessary change in direction of their spin angular momentum as they pass through the wall. Reflection, scattering, or a transfer of angular momentum onto the lattice are all possible outcomes, depending on the circumstances. This gives rise to a variety of different physical effects, most importantly a contribution to the electrical resistance caused by the wall, and a motion of the wall driven by the spin-polarised current.

Item Type: Article
Copyright, Publisher and Additional Information: © 2005 Taylor & Francis. This is an author produced version of a paper published in Advances in Physics. Uploaded in accordance with the publisher's self-archiving policy.
Academic Units: The University of Leeds > Faculty of Maths and Physical Sciences (Leeds) > School of Physics and Astronomy (Leeds)
Depositing User: Sherpa Assistant
Date Deposited: 16 May 2008 14:39
Last Modified: 08 Feb 2013 17:05
Published Version: http://dx.doi.org/10.1080/00018730500442209
Status: Published
Publisher: Taylor & Francis
Identification Number: 10.1080/00018730500442209
URI: http://eprints.whiterose.ac.uk/id/eprint/3795

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