Ferromagnetism in magnetically doped III-V semiconductors

被引：207
作者：
Litvinov, VI
Dugaev, VK
机构：
[1] WaveBand Corp, Torrance, CA 90501 USA
[2] Max Planck Inst Mikrostrukturphys, D-06120 Halle An Der Saale, Germany
[3] Ukrainian Acad Sci, Inst Mat Sci Problems, UA-58001 Chernovtsy, Ukraine
来源：
PHYSICAL REVIEW LETTERS | 2001年 / 86卷 / 24期
关键词：
D O I：
10.1103/PhysRevLett.86.5593
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The origin of ferromagnetism in semimagnetic III-V materials is discussed. The indirect exchange interaction caused by virtual electron excitations from magnetic impurity acceptor levels to the valence band can explain ferromagnetism in GaAs(Mn) in both degenerate and nondegenerate samples. Formation of ferromagnetic clusters and the percolation picture of phase transition describes well all available experimental data and allows us to predict the Mn-composition dependence of transition temperature in wurtzite (Ga,In,AI)N epitaxial layers.
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页码：5593 / 5596
页数：4
相关论文
共 33 条
[1]  
Abramovitz M, 1965, HDB MATH FUNCTIONS
[2]   SPIN-GLASS WITH A SEMICONDUCTOR AS HOST [J].
ABRIKOSOV, AA .
JOURNAL OF LOW TEMPERATURE PHYSICS, 1980, 39 (1-2) :217-229
[3]   Growth and characterization of low-temperature grown GaN with high Fe doping [J].
Akinaga, H ;
Németh, S ;
De Boeck, J ;
Nistor, L ;
Bender, H ;
Borghs, G ;
Ofuchi, H ;
Oshima, M .
APPLIED PHYSICS LETTERS, 2000, 77 (26) :4377-4379
[4]   Magnetic circular dichroism studies of carrier-induced ferromagnetism in (Ga1-xMnx)As [J].
Beschoten, B ;
Crowell, PA ;
Malajovich, I ;
Awschalom, DD ;
Matsukura, F ;
Shen, A ;
Ohno, H .
PHYSICAL REVIEW LETTERS, 1999, 83 (15) :3073-3076
[5]   NUCLEAR SPIN EXCHANGE IN SOLIDS - TL-203 AND TL-205 MAGNETIC RESONANCE IN THALLIUM AND THALLIC OXIDE [J].
BLOEMBERGEN, N ;
ROWLAND, TJ .
PHYSICAL REVIEW, 1955, 97 (06) :1679-1698
[6]   Magnetic ordering in GaAlAs:Mn double well structure [J].
Boselli, MA ;
Lima, ICD ;
Ghazali, A .
JOURNAL OF APPLIED PHYSICS, 2000, 87 (09) :6439-6441
[7]   Ferromagnetism and canted spin phase in AlAs/Ga1-xMnxAs single quantum wells:: Monte Carlo simulation [J].
Boselli, MA ;
Ghazali, A ;
Lima, ICD .
PHYSICAL REVIEW B, 2000, 62 (13) :8895-8902
[8]   Zener model description of ferromagnetism in zinc-blende magnetic semiconductors [J].
Dietl, T ;
Ohno, H ;
Matsukura, F ;
Cibert, J ;
Ferrand, D .
SCIENCE, 2000, 287 (5455) :1019-1022
[9]   Free carrier-induced ferromagnetism in structures of diluted magnetic semiconductors [J].
Dietl, T ;
Haury, A ;
dAubigne, YM .
PHYSICAL REVIEW B, 1997, 55 (06) :R3347-R3350
[10]  
DIETL T, CONDMAT0002450
1234