Semiconductors and Insulators
Electron correlations are very important in the study of semiconductors and insulators. This statement is not in contradiction with the observation that most experiments in semiconductor physics can be described within a one-particle picture. It merely shows that the quasiparticle concept works very well in these systems. A noticeable exception is the fractional quantum Hall effect, which is based exclusively on correlations and in which the quasiparticles obey fractional instead of Fermi statistics [9.1]. Even for a system like silicon, ab initio calculations show that electronic correlations contribute roughly one-third of the binding energy.
KeywordsCorrelation Energy Pair Correlation Function Extra Electron Fractional Quantum Hall Effect Quasiparticle Energy
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- 9.1R.B. Laughlin: In The Quantum Hall Effect, ed. by R.E. Prange, S.M. Girvin, 2nd edn. (Springer, Berlin, Heidelberg 1990)Google Scholar
- 9.5Program package “CRYSTAL”, described in C. Pisani, R. Dovesi, C. Roetti: Hartree-Fock Ab Initio Treatment of Crystalline Systems, Lect. Notes Chem., Vol. 48 (Springer, Berlin, Heidelberg 1988)Google Scholar
- 9.11J. Slater: Quantum Theory of Atomic Structure, Vol. IV (McGraw-Hill, New York 1960)Google Scholar
- 9.12L. Hedin, S. Lundqvist: In Solid State Physics, Vol. 23, ed. by F. Seitz, D. Turnbull, H. Ehrenreich (Academic, New York 1969)Google Scholar
- 9.18R. Hott: Ph.D. Thesis, Universität Stuttgart (1990)Google Scholar
- 9.19A.L. Fetter, J.D. Walecka: Quantum Theory of Many-Particle Systems (McGraw-Hill, New York 1971)Google Scholar