FRUSTRATION-INDUCED VANISHING OF MAGNETIC-MOMENTS IN RMN2 SYSTEMS

被引:52
作者
BALLOU, R [1 ]
LACROIX, C [1 ]
REGUEIRO, MDN [1 ]
机构
[1] INST MAX VON LAUE PAUL LANGEVIN,F-38042 GRENOBLE,FRANCE
关键词
D O I
10.1103/PhysRevLett.66.1910
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The RMn2 compounds are characterized by an instability of the Mn moment in a highly frustrated crystallographic structure. Although quite general, this problem has not yet been treated. A model derived from the Hubbard Hamiltonian is proposed. It accounts for the new physics observed: complex ordered phases where magnetic and nonmagnetic sites coexist and unusual dependence on external parameters.
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页码:1910 / 1913
页数:4
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