Probing hole-induced ferromagnetic exchange in magnetic semiconductors by inelastic neutron scattering

被引：61

作者：

Kepa, H

Le, VK

Brown, CM

Sawicki, M

Furdyna, JK

Giebultowicz, TM

Dietl, T

机构：

[1] Univ Warsaw, Inst Expt Phys, PL-00681 Warsaw, Poland

[2] Oregon State Univ, Dept Phys, Corvallis, OR 97331 USA

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

[4] NIST, Ctr Neutron Res, Gaithersburg, MD 20899 USA

[5] Univ Maryland, Dept Mat & Nucl Engn, College Pk, MD 20742 USA

[6] Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 USA

来源：

PHYSICAL REVIEW LETTERS | 2003年 / 91卷 / 08期

关键词：

D O I：

10.1103/PhysRevLett.91.087205

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The effect of hole doping on the exchange coupling of the nearest neighbor (NN) Mn pairs in Zn1-xMnxTe is probed by inelastic neutron scattering. The difference in the NN exchange energy DeltaJ(1) in the presence and in the absence of the holes is determined. The obtained value of DeltaJ(1) is in good agreement with the predictions of the Zener/RKKY model, even on the insulator side of the metal-insulator transition.

引用

页数：4

共 33 条

[1] NUMBER OF SINGLE, DOUBLE, AND TRIPLE CLUSTERS IN A SYSTEM CONTAINING 2 TYPES OF ATOMS [J].