Electronic structure and exchange interactions in diluted semimagnetic semiconductors (Zn,Co)Se and (Zn,Mn)Se
作者： J. Mašek
DOI: 10.1016/0038-1098(91)90682-L
关键词: Phase (matter) 、 Chemistry 、 Electronic structure 、 Exchange interaction 、 Condensed matter physics 、 Inorganic compound 、 Analytical chemistry 、 Coherent potential approximation 、 Ferromagnetism 、 Tight binding 、 Density of states
摘要: Abstract A comparative study of the electronic structure (Zn,Co)Se and (Zn,Mn)Se is done by using a tight-binding version coherent potential approximation. The densities states, relevant for photoemission experiment, are calculated magnetically disordered phase. exchange constant J pd obtained from splitting valence band top in ferromagnetic phase mixed crystal; dd estimated energy spin reversal. We explain large Co-based systems as result efficient hybridization d-states with band.
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