Abstract

Magnetic-field-induced circular polarization of the photoluminescence peak related to A(+) centers in quantum wells is measured for the first time. It is shown that, in a magnetic field of 4 T, the polarization degree is as high as 13%, while the peak splitting is virtually absent. A theory describing the behavior of the spin fine structure of A(+) centers in a magnetic field is developed. Experimental results agree well with the theoretical calculations.

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