Phase transition in a many-electron gas in a two-dimensional polar-semiconductor quantum well

Ashok Chatterjee and Shreekantha Sil
Phys. Rev. B 51, 2223 – Published 15 January 1995
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Abstract

We investigate the problem of an electron gas interacting with longitudinal-optical phonons in a two-dimensional polar-semiconductor quantum well for the entire range of the coupling parameter using the Feynman path-integral method and the random-phase approximation. We show that at a critical value of the electron concentration an optical polaron will undergo a transition from the localized state to a mobile state.

  • Received 18 May 1994

DOI:https://doi.org/10.1103/PhysRevB.51.2223

©1995 American Physical Society

Authors & Affiliations

Ashok Chatterjee

  • School of Physics, University of Hyderabad, Central University Post Office, Hyderabad 500 134, India

Shreekantha Sil

  • Saha Institute of Nuclear Physics, Solid State and Molecular Physics Division, Sector-1, Block-AF, Bidhannagar, Calcutta 700 064, India

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Vol. 51, Iss. 4 — 15 January 1995

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