Two-Phonon Deformation Potentials, Second Order Raman Scattering, and Superconductivity in Degenerate Semiconductors

  • K. L. Ngai
  • A. K. Ganguly
Part of the NATO Advanced Study Institutes Series book series (volume 2)

Abstract

In the initial magneto-optical studies [1] of carrier-two-phonon interactions, henceforth referred to as I, strong coupling between electrons and two non-polar optical (NPO) or TO phonons was observed in InSb. Magneto-optical resonant carrier-phonon(s) coupling effects in the two optical phonon energy region bear clear evidence that 2NP0 phonon interaction occurs with significant strength in InSb. In this work, several other examples are given that corroborate the physical importance of two-phonon deformation interaction in semiconductors. Our main purpose is to show that two phonon-induced intravalley, and/or in-tervalley electron-electron interaction is an important mechanism for superconductivity in low-carrier-density systems such as degenerate semiconductors.

Keywords

Zinc Recombination ZnSe Weinstein GeTe 

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Copyright information

© Plenum Press, London 1974

Authors and Affiliations

  • K. L. Ngai
    • 1
  • A. K. Ganguly
    • 1
  1. 1.Naval Research LaboratoryUSA

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