Anomalous Hall effect in paramagnetic two dimensional systems

Details Anomalous Hall effect in paramagnetic two dimensional systems Anomalous Hall effect in paramagnetic two dimensional systems

2003-11-06

arxiv.org/abs/cond-mat/0311147v1

Phys. Rev. B 68, 045327 (2003)

Physics

Condensed Matter

9 pages, 10 figures, 2 tables

Scientific paper

10.1103/PhysRevB.68.045327

We investigate the possibility of observing the anomalous Hall effect (AHE) in two dimensional paramagnetic systems. We apply the semiclassical equations of motion to carriers in the conduction and valence bands of wurtzite and zincblende quantum wells in the exchange field generated by magnetic impurities and we calculate the anomalous Hall conductivity based on the Berry phase corrections to the carrier velocity. We show that under certain circumstances this conductivity approaches one half of the conductance quantum. We consider the effect of an external magnetic field and show that for a small enough field the theory is unaltered.

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