The coupling of intersubband transitions and the quantum-well LO phonon in p-doped GaAs-GaAlAs multiple-quantum wells

DOI to cite this document:: 10.5283/epub.9650

Kraus, J. ; Ils, P. ; Schüller, Christian ; Schaack, G. ; Ebeling, J. K. ; Schlapp, W. ; Weimann, G.

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Date of publication of this fulltext: 02 Oct 2009 09:15

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Abstract

The authors have applied resonant Raman spectroscopy to two p-type modulation-doped GaAs-GaAlAs multiple-quantum wells (MQW) with well widths dW=10 and 30 nm. In both samples one of the hole intersubband transitions observed is coupling to the quantum-well LO (longitudinal optical) phonon. The influence of an external magnetic field on this coupling phenomenon was investigated. A shift of the ...