Ferromagnetism of magnetic semiconductors: Zhang-Rice limit

被引：84

作者：

Dietl, T

Matsukura, F

Ohno, H

机构：

[1] Polish Acad Sci, Inst Phys, PL-02668 Warsaw, Poland

[2] Tohoku Univ, Inst Elect Commun, Lab Elect Intelligent Syst, Sendai, Miyagi 9808577, Japan

来源：

PHYSICAL REVIEW B | 2002年 / 66卷 / 03期

关键词：

D O I：

10.1103/PhysRevB.66.033203

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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 the strong increase of E-b and the evolution of a Mn spin-resonance spectrum with the magnitude of valence-band offsets. The high Curie temperature above room temperature is shown to be in accordance with the mean-field Zener model.

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页码：332031 / 332034

页数：4

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