Beyond the Virtual Crystal Approximation in Diluted Magnetic Semiconductors

• Authors: J. Tworzydło
• Languages of publication: EN

Abstracts

EN

We present a new model approach which goes beyond the virtual crystal approximation and the molecular field approximation in the description of the spin splitting of band states in diluted magnetic semiconductors. The theory is formulated within a one-band effective mass approximation and explicitly takes into account a chemical and magnetic disorder caused by substitutional ions. The results confirm the apparent dependence of the p-d exchange integral on x in Cd_{1-x}Mn_{x}S for small concentrations of Mn ions and we predict the asymmetric field and temperature dependence of the spin splitting in this compound.

Keywords

EN

71.70.Gm; 78.20.Ls; 71.55.Gs

Discipline

• 78.20.Ls: Magneto-optical effects(for magneto-optical devices, see 85.70.Sq)
• 71.55.Gs: II-VI semiconductors
• 71.70.Gm: Exchange interactions

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 1995
• Volume: 87
• Issue: 2
• Pages: 391-394

Dates

published

1995-02

Contributors

author

J. Tworzydło

• Institute of Theoretical Physics, Warsaw University, Hoża 69, 00-681 Warszawa, Poland

Identifiers

DOI

10.12693/APhysPolA.87.391