1 research outputs found
Anomalous Hall effect in paramagnetic two dimensional systems
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.Comment: 9 pages, 10 figures, 2 table