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Phys. Rev. B 80, 153307 (2009) [4 pages]

Dyakonov-Perel spin relaxation in InSb/AlxIn1−xSb quantum wells

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Jun Li1, Kai Chang1,*, and F. M. Peeters2
1SKLSM, Institute of Semiconductors, Chinese Academy of Sciences, P.O. Box 912, Beijing 100083, China
2Department of Physics, University of Antwerp, Groenenborgerlaan 171, B-2020 Antwerpen, Belgium

Received 26 June 2009; revised 21 September 2009; published 22 October 2009

We investigate theoretically the Dyakonov-Perel spin relaxation time by solving the eight-band Kane model and Poisson equation self-consistently. Our results show distinct behavior with the single-band model due to the anomalous spin-orbit interactions in narrow band-gap semiconductors, and agree well with the experiment values reported in recent experiment [ K. L. Litvinenko et al. New J. Phys. 8 49 (2006)]. We find a strong resonant enhancement of the spin relaxation time appears for spin align along [11̅ 0] at a certain electron density at 4 K. This resonant peak is smeared out with increasing the temperature.

© 2009 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevB.80.153307
DOI:
10.1103/PhysRevB.80.153307
PACS:
72.25.Rb, 71.28.+d, 71.70.Ej

*kchang@red.semi.ac.cn

 
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