Intrinsic Spin Hall Effect in the Two Dimensional Hole Gas

Journal Article · Fri Jan 15 00:00:00 EST 2010 · Submitted to Physical Review Letters

OSTI ID:970444

Bernevig, B Andrei; Zhang, Shou-Cheng

We show that two types of spin-orbit coupling in the 2 dimensional hole gas (2DHG), with and without inversion symmetry breaking, contribute to the intrinsic spin Hall effect. Furthermore, the vertex correction due to impurity scattering vanishes in both cases, in sharp contrast to the case of usual Rashba coupling in the electron band. Recently, the spin Hall effect in a hole doped GaAs semiconductor has been observed experimentally by Wunderlich et al. From the fact that the life time broadening is smaller than the spin splitting, and the fact impurity vertex corrections vanish in this system, we argue that the observed spin Hall effect should be in the intrinsic regime.

• Research Organization: SLAC National Accelerator Lab., Menlo Park, CA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC02-76SF00515
• OSTI ID: 970444
• Report Number(s): SLAC-PUB-13907; TRN: US201002%%1146
• Journal Information: Submitted to Physical Review Letters, Journal Name: Submitted to Physical Review Letters
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ELECTRONS
HALL EFFECT
SCATTERING
SPIN
SYMMETRY BREAKING
Other
MATSCI