Enhanced excitonic interactions in doped quantum wells in high magnetic fields

We report a strong enhancement and transformation of the Fermi edge singularity at high magnetic fields in a series of doped GaAs-Al33%Ga67%As quantum wells with width varying from 68 Angstrom to 150 Angstrom with carrier densities similar to4 (.) 10(11)cm(-2). We explain this behavior in terms of a...

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Bibliographic Details
Main Authors: Zhitomirsky, V, Chughtai, R, Nicholas, R, Henini, M
Format: Conference item
Published: 2001