Advertisement

Density of States in Disordered Two-Dimensional Electron Systems

  • Bing C. Xu
Conference paper
Part of the Springer Proceedings in Physics book series (SPPHY, volume 39)

Abstract

By using a supersymmetric mean-field formulation, the density of states of a disordered two-dimensional electron system is calculated, which is quite different from previous results obtained either by using single impurity approximation or by neglecting couplings between Landau levels, and qualitatively agrees with experimental results.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. [1]
    K.B. Efetov, Adv. Phys. 32, 53 (1983) and references therein.MathSciNetADSCrossRefGoogle Scholar
  2. [2]
    E. Brezin, D.J. Gross and C. Itzykson, Nucl. Phys. B235 [FS11] (1984).Google Scholar
  3. [3]
    B. C. Xu and S.E. Trullinger, Phys. Rev. Lett. 57, 3113 (1986).ADSCrossRefGoogle Scholar
  4. [4]
    S.F. Edwards and P.W. Anderson, J. Phys. F 5, 965(1975).ADSCrossRefGoogle Scholar
  5. [5]
    J.P. Eisenstein, H.L. Stormer, V. Narayanamurti, A.Y. Cho, A.C. Gossard, and C.W. Tu, Phys. Rev. Letts. 55, 875, (1985).ADSCrossRefGoogle Scholar
  6. [6]
    F.F. Fang, T.P. Smith, and S.L. Wright, Surf. Sci. 196, 310 (1988) and references therein.ADSCrossRefGoogle Scholar
  7. [7]
    T. Ando and Y. Murayama, J. Phys. Soc. Jpn. 54, 1519 (1985); Phys. Rev. B 35, 2252 (1987).ADSCrossRefGoogle Scholar
  8. [8]
    J.J.M. Verbaarschot and M.R. Zimbauer, Ann. Phys. (N.Y.) 158, 78 (1984).ADSCrossRefGoogle Scholar
  9. [9]
    B.C. Xu and R.M. Stratt, to be published.Google Scholar
  10. [10]
    E.N. Economou, Green’s Functions in Quantum Physics, (Springer-Verlag, Berlin, 1979).Google Scholar
  11. [11]
    L.D. Landau and E.M. Lifshitz, Theoretical Courses Physics, Vol. 3, Pergamon Press (1977).Google Scholar
  12. [12]
    H.L. Cycon, R.G.Froese, W. Kirsch and B. Simon, Schrödinger Operators, (Springer-Verlag, Berlin, 1987), Chp. 9.MATHGoogle Scholar
  13. [13]
    Phys. Today, Sep. 1988, p. 21 and references therein. Google Scholar
  14. [14]
    K.B. Efetov, Sov. Phys. JEPT 62 (3) 605, (1985) Google Scholar
  15. [15]
    F. Wegner, Z. Phys. B. 44, 9 (1981).MathSciNetADSCrossRefGoogle Scholar
  16. [16]
    P. Lloyd, J. Phys. C2, 1717 (1969).ADSGoogle Scholar
  17. [17]
    S. Das Sarma and X.C. Xie, Phys. Rev. Letts. 61, 788, (1988).CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1989

Authors and Affiliations

  • Bing C. Xu
    • 1
  1. 1.Department of ChemistryBrown UniversityProvidenceUSA

Personalised recommendations