Ferromagnetism of magnetic semiconductors--Zhang-Rice limit

Preprint

13 September 2001

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/0109245

Abstract

It is suggested that p-d hybridization contributes significantly to the hole binding energy E_b of Mn acceptors in III-V compounds, leading in an extreme case to the formation of Zhang-Rice-like small magnetic polarons. The model explains both strong increase of E_b and evolution of Mn spin-resonance spectrum with the magnitude of valence-band offsets. For such a structure of Mn impurity in III-V materials, possible models accounting for the recently determined Curie temperature of about 940 K in a compensated Ga(0.91)Mn(0.09)N are discussed.

Keywords

HYBRIDIZATION CONTRIBUTES
MAGNETIC SEMICONDUCTORS
FERROMAGNETISM
ZHANG RICE
RICE LIMIT
EVOLUTION
E_B

All Related Versions

Version 1, 2001-09-13, ArXiv
Published version: Physical Review B, 66 (3), 033203.

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