Electron and optical phonon interaction in the two-dimensional electron gas in In 0.52Al 0.48As/In 0.53Ga 0.47As single quantum well

Abstract

Shubnikov-de Haas, Van der Pauw Hall-effect, and Raman spectroscopy measurements on In 0.52Al 0.48As/In 0.53Ga 0.47As one-side-modulation-doped quantum wells grown by metalorganic chemical vapor deposition have been carried out to investigate the magnetotransport and optical properties of an electron gas in an In 0.53Ga 0.47As single quantum well. An electron diffraction pattern from transmission electron microscopy measurements shows that the In 0.52Al 0.48As/In 0.53Ga 0.47As heterointerfaces have a perfect lattice match. The Shubnikov-de Haas and quantum Hall effect measurements at 1.5 K have demonstrated clearly the existence of a quasi-two-dimensional electron gas in the In 0.53Ga 0.47As quantum well. Raman spectroscopy shows the several optical phonon modes of the In 0.52Al 0.48As/In 0.53Ga 0.47As structures, and indicates the interaction of the longitudinal optical phonons and the intersubband transitions.