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Phys. Rev. Lett. 92, 037204 (2004) [4 pages]

First Principles Calculation of Anomalous Hall Conductivity in Ferromagnetic bcc Fe

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Yugui Yao1,2,3, Leonard Kleinman1, A. H. MacDonald1, Jairo Sinova4,1, T. Jungwirth5,1, Ding-sheng Wang3, Enge Wang2,3, and Qian Niu1
1Department of Physics, University of Texas, Austin, Texas 78712, USA
2International Center for Quantum Structure, Chinese Academy of Sciences, Beijing 100080, China
3Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China
4Department of Physics, Texas A&M University, College Station, Texas 77843-4242, USA
5Institute of Physics ASCR, Cukrovarnická 10, 162 53 Praha 6, Czech Republic

Received 14 July 2003; published 22 January 2004

We perform a first principles calculation of the anomalous Hall effect in ferromagnetic bcc Fe. Our theory identifies an intrinsic contribution to the anomalous Hall conductivity and relates it to the k-space Berry phase of occupied Bloch states. This dc conductivity has the same origin as the well-known magneto-optical effect, and our result accounts for experimental measurement on Fe crystals with no adjustable parameters.

© 2004 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.92.037204
DOI:
10.1103/PhysRevLett.92.037204
PACS:
75.47.–m, 71.15.–m, 72.15.Eb, 78.20.Ls
 
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