The Anomalous Hall effect in re-entrant AuFe alloys and the real space Berry phase

Details The Anomalous Hall effect in re-entrant AuFe alloys and the real space Berry phase The Anomalous Hall effect in re-entrant AuFe alloys and the real space Berry phase

2005-01-20

arxiv.org/abs/cond-mat/0501482v1

Physics

Condensed Matter

Disordered Systems and Neural Networks

4 pages, 1 eps figure

Scientific paper

The Hall effect has been studied in a series of AuFe samples in the re-entrant concentration range, as well as in the spin glass range. The data demonstrate that the degree of canting of the local spins strongly modifies the anomalous Hall effect, in agreement with theoretical predictions associating canting, chirality and a real space Berry phase. The canonical parametrization of the Hall signal for magnetic conductors becomes inappropriate when local spins are canted.

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