Simple Two‐Band s–d Model for Ferromagnetic Semiconductors with Hybridization | Zendy

Szőcs V. | Zendy

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Simple Two‐Band s–d Model for Ferromagnetic Semiconductors with Hybridization

Author(s) -

Szőcs V.

Publication year - 1980

Publication title -

physica status solidi (b)

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.51

H-Index - 109

eISSN - 1521-3951

pISSN - 0370-1972

DOI - 10.1002/pssb.2220980111

Subject(s) - decoupling (probability) , electron , condensed matter physics , ferromagnetism , semiconductor , simple (philosophy) , physics , density of states , magnetic semiconductor , electronic band structure , quantum mechanics , philosophy , epistemology , control engineering , engineering

A simple two‐band model with hybridization between conducting s‐electrons and localized d ‐(or f‐) electrons for ferromagnetic semiconductors in their low electron density regime is suggested and analyzed. Čápek's decoupling scheme is used for the time‐dependent Zubarev Green functions. A closed form is obtained for the spin‐dependent self‐energy. For a special case, the density of states is evaluated numerically.

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