Electronic structure of substitutional Mn in epitaxial In0.965Mn0.035Sb film

Parashar, N. D.; Keavney, D. J.; Wessels, B. W.
November 2009
Applied Physics Letters;11/16/2009, Vol. 95 Issue 20, p201905
Academic Journal
The magnetic and electronic structure of Mn in In0.965Mn0.035Sb ferromagnetic semiconductor thin film was studied by x-ray absorption spectroscopy and x-ray magnetic circular dichroism. Comparison with atomic multiplet calculations suggests that manganese substitutes on sites with tetrahedral symmetry. Strong magnetic dichroism was observed from 5 to 300 K, at an applied field of 2 T. The temperature dependence of dichroism indicates presence of two magnetic Mn species having very similar spectral features. A high temperature species dominates the dichroic response over 50–300 K and a low temperature species is observed below 50 K.


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