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Phys Rev Lett. 2003 Jan 31;90(4):047202. Epub 2003 Jan 30.

Anomalous Hall effect as a probe of the chiral order in spin glasses.

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1
Department of Earth and Space Science, Faculty of Science, Osaka University, Toyonaka 560-0043, Japan.

Abstract

The anomalous Hall effect arising from the noncoplanar spin configuration (chirality) is discussed as a probe of the chiral order in spin glasses. It is shown that the Hall coefficient yields direct information about the linear and nonlinear chiral susceptibilities of the spin sector, which has been hard to obtain experimentally from the standard magnetic measurements. Based on the chirality scenario of spin-glass transition, predictions are given on the behavior of the Hall resistivity of canonical spin glasses.

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