Tuning anomalous Hall conductivity in L1[sub 0] FePt films by long range chemical ordering

M. Chen, Z. Shi, W. J. Xu, Xixiang Zhang, J. Du, S. M. Zhou

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For L10 FePt films, the anomalous Hall conductivity σ xy=-a σxx-b, where a=a0f(T), b=b 0f(T), and f (T) is the temperature dependence factor of the spontaneous magnetization. With increasing chemical long range ordering S, a0 changes its sign accompanied by a reduction of its magnitude and b0 increases monotonically. The spin-orbit coupling strength is suggested to increase with increasing S. As an approach, the long range chemical ordering can be used to control the anomalous Hall effect in ferromagnetic alloy films. © 2011 American Institute of Physics.
Original languageEnglish (US)
Pages (from-to)082503
JournalApplied Physics Letters
Issue number8
StatePublished - Feb 24 2011

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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