1.
Phys Rev Lett
; 102(24): 247202, 2009 Jun 19.
Article
in English
| MEDLINE
| ID: mdl-19659041
ABSTRACT
We present a unified interpretation of experimentally observed magnetic circular dichroism (MCD) in the ferromagnetic semiconductor (Ga,Mn)As, based on theoretical arguments, which demonstrates that MCD in this material arises primarily from a difference in the density of spin-up and spin-down states in the valence band brought about by the presence of the Mn impurity band, rather than being primarily due to the Zeeman splitting of electronic states.