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arXiv · 0905.0152

Orientation Dependence of the Intrinsic Anomalous Hall Effect in hcp Cobalt

Eric Roman·Yuriy Mokrousov·Ivo Souza
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Abstract

We carry out first-principles calculations of the dependence of the intrinsic anomalous Hall conductivity of hcp Co on the magnetization direction. The Hall conductivity decreases smoothly from 481 S/cm to 116 S/cm as the magnetization is tilted from the c-axis to the ab-plane. This factor-of-four reduction compares well with measurements on single crystals, while the angular average of 226 S/cm is in excellent agreement with the value of 205 S/cm measured in polycrystalline films. The strong anisotropy of the anomalous Hall conductivity is a consequence of spin-orbit induced changes in the electron states near the Fermi level as the magnetization is rotated.

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Eric Roman, Yuriy Mokrousov, Ivo Souza. 2009-05-04. Orientation Dependence of the Intrinsic Anomalous Hall Effect in hcp Cobalt. https://doi.org/10.1103/physrevlett.103.097203

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