The emerging picture of ferromagnetism in the divalent hexaborides

被引:21
作者
Fisk, Z [1 ]
Ott, HR
Barzykin, V
Gor'kov, LP
机构
[1] Univ Florida, Natl High Magnet Field Lab, Tallahassee, FL 32310 USA
[2] Los Alamos Natl Lab, Los Alamos, NM 87544 USA
[3] ETH Honggerberg, Festkorperphys Lab, CH-8093 Zurich, Switzerland
关键词
ferromagnetism; hexaboride;
D O I
10.1016/S0921-4526(01)01551-4
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
Experiment suggests that the divalent hexaborides are semiconductors and their ferromagnetism is due to a small concentration of intrinsic defects. The physics of these ferromagnets is put into perspective with recent observations implying ferromagnetic order in Mn-doped GaAs. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:808 / 810
页数:3
相关论文
共 18 条
[1]  
ABRIKOSOV AA, 1962, SOV PHYS JETP, V43, P2230
[2]   Ferromagnetism in doped excitonic insulators [J].
Balents, L ;
Varma, CM .
PHYSICAL REVIEW LETTERS, 2000, 84 (06) :1264-1267
[3]   Ferromagnetism and superstructure in Ca1-xLaxB6 [J].
Barzykin, V ;
Gor'kov, LP .
PHYSICAL REVIEW LETTERS, 2000, 84 (10) :2207-2210
[4]   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
[5]   Anomalous NMR spin-lattice relaxation in SrB6 and Ca1-xLaxB6 -: art. no. 140410 [J].
Gavilano, JL ;
Mushkolaj, S ;
Rau, D ;
Ott, HR ;
Bianchi, A ;
Young, DP ;
Fisk, Z .
PHYSICAL REVIEW B, 2001, 63 (14)
[6]  
GETTY S, UNPUB
[7]  
GIANNO K, CONDMAT0104511
[8]  
Herring C., 1966, MAGNETISM, V4
[9]  
KELDYSH LV, 1965, FIZ TVERD TELA+, V6, P2219
[10]  
Massidda S, 1997, Z PHYS B CON MAT, V102, P83, DOI 10.1007/s002570050267