Electron-phonon coupling in the two phonon mode ternary alloy $A{l}_{0.25}I{n}_{0.75}As/G{a}_{0.25}I{n}_{0.75}As$ quantum well

Abstract

We have investigated the infrared transmission of a two-dimensional (2DEG) electron gas confined in a $A{l}_{0.25}I{n}_{0.75}As/G{a}_{0.25}I{n}_{0.75}As$ 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.

arXiv comment7 pages, 3 figures

References in corpus (4)

• Two-dimensional electron gas formation in undoped In[0.75]Ga[0.25]As/In[0.75]Al[0.25]As quantum wells
• Magneto-transport in high g-factor, low-density two-dimensional electron systems confined in In_0.75Ga_0.25As/In_0.75Al_0.25As quantum wells
• Magneto infra-red absorption in high electronic density GaAs quantum wells
• Frohlich mass in GaAs-based structures

Cited by in corpus (1)

• Evidence for magnetoplasmon character of the cyclotron resonance response of a two-dimensional electron gas