publication . Article . 2007

Enhanced spin-relaxation time due to electron-electron scattering in semiconductor quantum wells

Leyland, W.J.H.; John, G.H.; Harley, R.T.; Glazov, M.M.; Ivchenko, E.L.; Ritchie, D.A.; Farrer, I.; Shields, A.J.; Henini, M.;
Open Access English
  • Published: 10 Apr 2007
  • Publisher: American Physical Society
  • Country: United Kingdom
Abstract
We present a detailed experimental and theoretical analysis of the spin dynamics of two-dimensional electron gases (2DEGs) in a series of n-doped GaAs∕AlxGa1−xAs quantum wells. Picosecond-resolution polarized pump-probe reflection techniques were applied in order to study in detail the temperature, concentration, and quantum-well-width dependencies of the spin relaxation rate of a small photoexcited electron population. A rapid enhancement of the spin lifetime with temperature up to a maximum near the Fermi temperature of the 2DEG was demonstrated experimentally. These observations are consistent with the D’yakonov-Perel’ spin-relaxation mechanism controlled by ...
Subjects
arXiv: Condensed Matter::Strongly Correlated ElectronsCondensed Matter::Mesoscopic Systems and Quantum Hall Effect
25 references, page 1 of 2

1 2 ∗ Permanent address: Cavendish Laboratory, Madingley Road, Cambridge CB4 3HE, UK.

1 M.M. Glazov and E.L. Ivchenko, JETP Lett. 75, 403 (2002).

2 M.M. Glazov, Phys. Sol. State 45, 1162 (2003).

3 M.M. Glazov and E.L. Ivchenko, JETP 99, 1279 (2004).

4 M.A. Brand, A. Malinowski, O.Z. Karimov, P.A. Marsden, R.T. Harley, A.J. Shields, D. Sanvitto, D.A. Ritchie, and M.Y. Simmons, Phys. Rev. Lett. 89, 236601 (2002); M.M. Glazov, W.J.H. Leyland, E.L. Ivchenko, R.T. Harley, M. Henini, A.J. Shields, and D.A. Ritchie, Proceedings of 28th International Conference on Physics of Semiconductors (ICPS 28) Vienna, 2006; M.M. Glazov, E.L. Ivchenko, M.A. Brand, O.Z. Karimov, and R.T. Harley, Proc. Int. Symp. “Nanostructures: Physics and Technology” (StPetersburg, Russia, 2003).

5 W.J.H. Leyland, R.T. Harley, M. Henini, A.J. Shields, and D.A. Ritchie, Proceedings of 28th International Conference on Physics of Semiconductors (ICPS 28) Vienna, 2006, and to be published.

6 F. Meier and B.P. Zakharchenya (ed.) 1984 Optical Orientation, Modern Problems in Condensed Matter Science (Amsterdam: North-Holland)

7 M.E. Flatt´e, J.M. Byers, and W.H. Lau 2002 Semiconductor Spintronics and Quantum Computation: chapter 4, Spin Dynamics in Semiconductors, ed. D.D. Awschalom et al. (Berlin: Springer)

8 R.J. Elliott, Phys. Rev. 96, 266 (1954).

9 Y. Yafet 1963 in Solid State Physics, Vol. 14, ed. F. Seitz and D. Turnbull (Academic, New York), p. 2.

10 G.L. Bir, A.G. Aronov, and G.E. Pikus, Sov. Phys. JETP 42, 705 (1976).

11 M.I. D'yakonov and V.I. Perel', Sov. Phys. JETP 33, 1053 (1971); Sov. Phys. Solid State 13, 3023 (1971).

12 M.I. D'yakonov and V.Yu. Kachorovskii, Sov. Phys. Semicond. 20, 110 (1986).

13 V.N. Gridnev, JETP Lett. 74, 380 (2001)

14 S.R. Andrews, R.T. Harley, A.S. Plaut, and T.M. Kerr, Phys. Rev B 41, 5040 (1990).

25 references, page 1 of 2
Powered by OpenAIRE Research Graph
Any information missing or wrong?Report an Issue