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High-frequency conductivity of superlattices with electron-phonon coupling

Journal Article


Abstract


  • The high-frequency and long-wavelength conductivity due to electronoptical-phonon interaction was derived for superlattices made out of polar or partially polar semiconductors. The treatment for conductivity rests on Kubos formula for the conductivity and the temperature-dependent Greens-function formalism. General expressions for the conductivity and the resistivity have been derived, and we have performed numerical calculations for a simple model in which the subband structures of the phonons are ignored and the electronic wave function is approximated by a periodic array of two-dimensional electron gases. © 1987 The American Physical Society.

Publication Date


  • 1987

Citation


  • Tzoar, N., & Zhang, C. (1987). High-frequency conductivity of superlattices with electron-phonon coupling. Physical Review B, 35(14), 7596-7603. doi:10.1103/PhysRevB.35.7596

Scopus Eid


  • 2-s2.0-0642328351

Start Page


  • 7596

End Page


  • 7603

Volume


  • 35

Issue


  • 14

Abstract


  • The high-frequency and long-wavelength conductivity due to electronoptical-phonon interaction was derived for superlattices made out of polar or partially polar semiconductors. The treatment for conductivity rests on Kubos formula for the conductivity and the temperature-dependent Greens-function formalism. General expressions for the conductivity and the resistivity have been derived, and we have performed numerical calculations for a simple model in which the subband structures of the phonons are ignored and the electronic wave function is approximated by a periodic array of two-dimensional electron gases. © 1987 The American Physical Society.

Publication Date


  • 1987

Citation


  • Tzoar, N., & Zhang, C. (1987). High-frequency conductivity of superlattices with electron-phonon coupling. Physical Review B, 35(14), 7596-7603. doi:10.1103/PhysRevB.35.7596

Scopus Eid


  • 2-s2.0-0642328351

Start Page


  • 7596

End Page


  • 7603

Volume


  • 35

Issue


  • 14