Volume 67, Number 6, September 2004
|Page(s)||1031 - 1037|
|Section||Condensed matter: electronic structure, electrical, magnetic, and optical properties|
|Published online||01 September 2004|
Electron-phonon coupling in the two-phonon mode ternary alloy quantum well
Grenoble High Magnetic Field Laboratory, Max Planck Institut für Festkörperforschung and Centre National de la Recherche Scientifique BP 166, F-38042 Grenoble Cedex 9, France
2 NEST-INFM and Laboratorio Nazionale TASC-INFM Area Science Park, I-34012 Trieste, Italy
3 Dipartimento di Fisica, Università di Modena e Reggio Emilia I-41100 Modena, Italy
Accepted: 22 July 2004
We have investigated the infrared transmission of a two-dimensional electron gas (2DEG) confined in a single quantum well in order to study the electron optical phonon interaction in a two-phonon mode system. Infrared transmission experiments have been performed in both the perpendicular Faraday (PF) and tilted Faraday (TF) configurations for which the growth axis of the sample is tilted with respect to the incident light propagation direction and to the magnetic-field direction. The experimental results lead to question the validity of the concept of polaron mass in a real material.
PACS: 78.66.Fd – III-V semiconductors / 71.38.-k – Polarons and electron-phonon interactions / 78.67.-n – Optical properties of low-dimensional, mesoscopic, and nanoscale materials and structures
© EDP Sciences, 2004
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