Fröhlich mass in GaAs-based structures.
نویسندگان
چکیده
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.
منابع مشابه
Comment on "Fröhlich mass in GaAs-based structures".
In a recent Letter [1], Faugeras et al. investigate the cyclotron resonance (CR) spectra of doped GaAs quantum well structures. From an analysis of their data these authors question the validity of the concept of the Fröhlich interaction and the polaron mass in a real system. It is stated in Ref. [1], that Fröhlich's polaron theory would predict a resonant magnetopolaron coupling near the longi...
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ورودعنوان ژورنال:
- Physical review letters
دوره 92 10 شماره
صفحات -
تاریخ انتشار 2004