Spectroscopy of Rashba spin splitting in InSb quantum wells

Date
2004-10-22Author
Khodaparast, Giti A.
Doezema, R. E.
Chung, S. J.
Goldammer, K. J.
Santos, M. B.
Metadata
Show full item recordAbstract
We use electron spin resonance in the far infrared to probe the Landau-level spin splitting in symmetric and asymmetric InSb quantum wells. The asymmetric wells exhibit a strong deviation in behavior from the symmetric wells at low magnetic fields with apparent g factors far in excess of the bulk g factor of InSb. These asymmetry-induced shifts in the spin resonance depend on Landau-level index as predicted by the Bychkov-Rashba model. We analyze the shifts to extract values for the Rashba parameter.