You are not logged in to this journal. Log in    |   Subscription Information

Phys. Rev. Lett. 99, 086602 (2007) [4 pages]

Crossover Behavior of the Anomalous Hall Effect and Anomalous Nernst Effect in Itinerant Ferromagnets

T. Miyasato,1 N. Abe,1 T. Fujii,1 A. Asamitsu,1,2 S. Onoda,2 Y. Onose,3 N. Nagaosa,2,3,4 and Y. Tokura2,3,4
1Cryogenic Research Center, University of Tokyo, Tokyo 113-0032, Japan
2Spin Superstructure Project, ERATO, JST, AIST Central 4, Tsukuba 305-8562, Japan
3Department of Applied Physics, University of Tokyo, Tokyo 113-8656, Japan
4Correlated Electron Research Center (CERC), AIST Central 4, Tsukuba 305-8562, Japan

Received 11 October 2006; published 24 August 2007

The anomalous Hall effect (AHE) and anomalous Nernst effect (ANE) are experimentally investigated in a variety of ferromagnetic metals including pure transition metals, oxides, and chalcogenides, whose resistivities range over 5 orders of magnitude. For these ferromagnets, the transverse conductivity sigmaxy versus the longitudinal conductivity sigmaxx shows a crossover behavior with three distinct regimes in accordance qualitatively with a recent unified theory of the intrinsic and extrinsic AHE. We also found that the transverse Peltier coefficient alphaxy for the ANE obeys the Mott rule. These results offer a coherent and semiquantitative understanding of the AHE and ANE to an issue of controversy for many decades.

©2007 The American Physical Society

URL: http://link.aps.org/doi/10.1103/PhysRevLett.99.086602
DOI: 10.1103/PhysRevLett.99.086602
PACS: 72.15.Eb; 72.20.Pa
  • 72.15.Eb
    Electrical and thermal conduction in crystalline metals and alloys
  • 72.20.Pa
    Thermoelectric and thermomagnetic effects (semiconductors/insulators)
  • YEAR: 2007

REFERENCES (19)

For access to fully linked references, you need to log in. For access to fully linked references, you need to Log in.

CITING ARTICLES

For access to citing articles, you need to log in.
For access to citing articles, you need to Log in.



A new free weekly publication from APS

Physics - A new free weekly publication from APS
Please visit physics.aps.org
 
Article Tools