Antiferromagnetic ordering of S=1/2 triangles in La4Cu3MoO12

被引:47
作者
Azuma, M [1 ]
Odaka, T
Takano, M
Vander Griend, DA
Poeppelmeier, KR
Narumi, Y
Kindo, K
Mizuno, Y
Maekawa, S
机构
[1] Kyoto Univ, Chem Res Inst, Uji, Kyoto 6110011, Japan
[2] Japan Sci & Technol Corp, CREST, Kawaguchi, Saitama 3320012, Japan
[3] Northwestern Univ, Dept Chem, Dept Mat Sci & Engn & Sci & Technol, Ctr Supercond, Evanston, IL 60208 USA
[4] Osaka Univ, KYOKUGEN, Toyonaka, Osaka 5608531, Japan
[5] Tohoku Univ, Inst Mat Res, Aoba Ku, Sendai, Miyagi 9808577, Japan
来源
PHYSICAL REVIEW B | 2000年 / 62卷 / 06期
关键词
D O I
10.1103/PhysRevB.62.R3588
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Magnetic properties of a cupric triangular cluster compound La4Cu3MoO12 were investigated. Susceptibility data show that paramagnetic cupric spin (S=1/2) above room temperature forms S=1/2 trimers at lower temperatures because of strong intratrimer antiferromagnetic interactions. The cluster moments acquire antiferromagnetic order below 2.6 K. The trimers can be polarized in an external field of 20 T at 1.3 K. The magnetization remains nearly constant at 1 mu(B) per trimer up to a magnetization plateau at 55 T.
引用
收藏
页码:R3588 / R3591
页数:4
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