Ellipsometric study of the electronic structure of $ Ga1-x Mnx As $ and low-temperature $ GaAs $

K. S. Burch, J. Stephens, R. K. Kawakami, D. D. Awschalom, D. N. Basov.
Ellipsometric study of the electronic structure of $ Ga1-x Mnx As $ and low-temperature $ GaAs $
Phys. Rev. B 70, 205208 (2004)