Skew scattering due to intrinsic spin-orbit coupling in a two-dimensional electron gas
Megjelenés dátuma: 2007
MTMT: 1205031
WoS ID: 000248500800106
Scopus ID: 34547211123
Absztrakt:
We present the generalization of the two-dimensional quantum
scattering
formalism to systems with Rashba spin-orbit coupling. Using
symmetry
considerations, we show that the differential scattering cross
section
depends on the spin state of the incident electron, and skew
scattering
may arise even for central spin-independent scattering
potentials. The
skew scattering effect is demonstrated by exact results of a
simple
hard wall impurity model. The magnitude of the effect for short-
range
impurities is estimated using the first Born approximation. The
exact
formalism we present can serve as a foundation for further
theoretical
investigations.
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