Abstract
The conductivity of a two-dimensional electron gas in a parallel magnetic field is calculated. We take into account the magnetic-field-induced spin-splitting, which changes the density of states, the Fermi momentum, and the screening behavior of the electron gas. For impurity scattering, we predict a positive magnetoresistance for low electron density and a negative magnetoresistance for high electron density. The theory is in qualitative agreement with recent experimental results found for Si inversion layers and Si quantum wells.
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V. T. Dolgopolov, G. V. Kravchenko, A. A. Shaskin, and S. V. Kravchenko, Pis’ma Zh. Éksp. Teor. Fiz. 55, 701 (1992) [JETP Lett. 55, 733 (1992)].
D. Simonian, S. V. Kravchenko, M. P. Sarachik, and V. M. Pudalov, Phys. Rev. Lett. 79, 2304 (1997).
V. M. Pudalov, G. Brunthaler, A. Prinz, and G. Bauer, Pis’ma Zh. Éksp. Teor. Fiz. 65, 887 (1997) [JETP Lett. 65, 932 (1997)].
D. Simonian, S. V. Kravchenko, M. P. Sarachik, and V. M. Pudalov, Phys. Rev. B 57, R9420 (1998).
M. Y. Simmons, A. R. Hamilton, M. Pepper et al., Phys. Rev. Lett. 80, 1292 (1998).
K. M. Mertes, D. Simonian, M. P. Sarachik et al., Phys. Rev. B 60, R5093 (1999).
J. Yoon, C. C. Li, D. Shahar et al., Phys. Rev. Lett. 82, 1744 (1999).
T. Okamoto, K. Hosoya, S. Kawaji, and A. Yagi, Phys. Rev. Lett. 82, 3875 (1999).
T. Okamoto, K. Hosoya, S. Kawaji et al., Cond-mat/9906425 (1999).
S. V. Kravchenko, G. V. Kravchenko, J. E. Furneaux et al., Phys. Rev. B 50, 8039 (1994).
S. V. Kravchenko, W. E. Mason, G. E. Bowker et al., Phys. Rev. B 51, 7038 (1995).
S. V. Kravchenko, D. Simonian, M. P. Sarachik et al., Phys. Rev. Lett. 77, 4938 (1996).
K. M. Cham and R. G. Wheeler, Phys. Rev. Lett. 44, 1472 (1980).
E. A. Vyrodov, V. T. Dolgopolov, S. I. Dorozhkin, and N. B. Zhitenev, Zh. Éksp. Teor. Fiz. 94, 234 (1988) [Sov. Phys. JETP 67, 998 (1988)].
F. Stern, Phys. Rev. Lett. 44, 469 (1980).
A. Gold and V. T. Dolgopolov, Phys. Rev. B 33, 1076 (1986).
S. Das Sarma and E. H. Hwang, Phys. Rev. Lett. 83, 164 (1999).
T. Ando, A. B. Fowler, and F. Stern, Rev. Mod. Phys. 54, 437 (1982).
S. Das Sarma and E. H. Hwang, Cond-mat/9909452 (1999).
A. Gold, Phys. Rev. B 44, 8818 (1991).
A. Gold, Phys. Rev. B 41, 8537 (1990).
A. Gold, Z. Phys. B 103, 491 (1997).
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From Pis’ma v Zhurnal Éksperimental’no\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l}\) i Teoretichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l}\) Fiziki, Vol. 71, No. 1, 2000, pp. 42–46.
Original English Text Copyright © 2000 by Dolgopolov, Gold.
This article was submitted by the authors in English.