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Circular and linear photogalvanic effects in type-II GaSb/InAs quantum well structures in the inverted regime

Plank, Helene ; Tarasenko, S. A. ; Hummel, T. ; Knebl, G. ; Pfeffer, P. ; Kamp, M. ; Höfling, S. ; Ganichev, Sergey


We report on the observation of photogalvanic effects induced by terahertz radiation in type-II GaSb/InAs quantum wells with inverted band order. Photocurrents are excited at oblique incidence of radiation and consist of several contributions varying differently with the change of the radiation polarization state; the one driven by the helicity and the other one driven by the linearly ...


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