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Fröhlich mass in GaAs-based structures.

作者信息

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

机构信息

Grenoble High Magnetic Field Laboratory, MPI-FKF and CNRS, BP 166, 38042 Grenoble 9, France.

出版信息

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

DOI:10.1103/PhysRevLett.92.107403
PMID:15089242
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.

摘要

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