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Theoretical Limits on the Minimal Switching Field and the Switching Current in Magnetization Reversal

Published online by Cambridge University Press:  26 February 2011

Xiangrong Wang  and
Zhouzhou Sun
Xiangrong Wang
Affiliation:
[email protected], Hong Kong University of Science and Technology, Department of Physics, Clear Water Bay, Kowloon, Hong Kong, NY, HKUST, China, People's Republic of, +852-2358-7488, +852 2358 1652
Zhouzhou Sun
Affiliation:
[email protected], City University of Hong Kong, Center of Super-Diamond and Advanced Films (COSDAF) & Department of Physics and Materials Science, Hong Kong SAR, China, People's Republic of
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Abstract

Recent theoretical limits of the minimal switching field and current for uniaxial magnetic nano-structures are reviewed. The results include also the optimal field and current pulses for the fastest magnetization reversal. Contrary to the general belief, the precessional magnetization reversal is not the fastest one, and its critical switching field is neither the lowest one.

Keywords

magnetic propertiesnanostructurespintronic
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1032: Symposium I – Nanoscale Magnetic Materials and Applications , 2007 , 1032-I01-05
Copyright
Copyright © Materials Research Society 2008

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