Chiral susceptibility in canonical spin glass and re-entrant alloys from Hall effect measurements
P. Pureur; F. Wolff Fabris; J. Schaf; I. A. Campbell
Журнал:
EPL (Europhysics Letters)
Дата:
2004-07-01
Аннотация:
The extraordinary Hall effect coefficients R<sub>s</sub>(T) of the canonical spin glass alloys AuFe 8at% and AuMn 8at% and of an archetype re-entrant system AuFe 18at% were measured as functions of temperature. The data show a critical cusp-like term superimposed on a smooth background for the spin glasses, and change of sign with temperature for the re-entrant. The results can be interpreted consistently by invoking a chiral Hall effect contribution as proposed by Kawamura.
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