Anomalous Hall effect in noncommutative mechanics
Copyright policy )Anomalous Hall effect in noncommutative mechanics
The anomalous velocity term in the semiclassical model of a Bloch electron deviates the trajectory from the conventional one. When the Berry curvature (alias noncommutative parameter) is a monopole in momentum space as found recently in some ferromagnetic semiconductors while observing the anomalous Hall effect, we get a transverse shift, similar to that in the optical Hall effect.
4 pages. A figure added. To be published in Phys. Lett. A
- UMR 7013 Institut Denis Poisson France
- François Rabelais University France
- François Rabelais University France
High Energy Physics - Theory, Condensed Matter - Mesoscale and Nanoscale Physics, High Energy Physics - Theory (hep-th), Mesoscale and Nanoscale Physics (cond-mat.mes-hall), FOS: Physical sciences
High Energy Physics - Theory, Condensed Matter - Mesoscale and Nanoscale Physics, High Energy Physics - Theory (hep-th), Mesoscale and Nanoscale Physics (cond-mat.mes-hall), FOS: Physical sciences
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