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. 2004 Mar 12;92(10):107403.
doi: 10.1103/PhysRevLett.92.107403. Epub 2004 Mar 12.

Fröhlich mass in GaAs-based structures

C Faugeras  1 , G Martinez, A Riedel, R Hey, K J Friedland, Yu Bychkov
Affiliations

Fröhlich mass in GaAs-based structures

C Faugeras et al. Phys Rev Lett. .

Abstract

The Fröhlich interaction is one of the main electron-phonon intrinsic interactions in polar materials originating from the coupling of one itinerant electron with the macroscopic electric field generated by any longitudinal optical (LO) phonon. Infrared magnetoabsorption measurements of doped GaAs quantum well structures have been carried out in order to test the concept of Fröhlich interaction and polaron mass in such systems. These new experimental results lead one to question the validity of this concept in a real system.

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