Magnetic order of LiMnBO3:: A new type of chiral magnetic ground state -: art. no. 052405

被引：17
作者：
Li, RK [1 ]
Chen, CT
Greaves, C
机构：
[1] Chinese Acad Sci, Beijing Ctr Crystal Res & Dev, Beijing 100080, Peoples R China
[2] Univ Birmingham, Sch Chem, Birmingham B15 2TT, W Midlands, England
来源：
PHYSICAL REVIEW B | 2002年 / 66卷 / 05期
关键词：
D O I：
10.1103/PhysRevB.66.052405
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
beta-LiMnBO3 crystallizes in a hexagonal lattice and is built up of MnO5 chains linked by BO3 groups. Magnetic susceptibility shows a broad maximum at 47 K, above which the behavior is typical for a one-dimensional Heisenberg antiferromagnet with J=5.4 K. Magnetic neutron diffraction reveals a much lower ordering temperature (28.5 K) to give a novel chiral ground state with a magnetic unit cell of root3a(N), 2c(N) consisting of a mixture of one ferromagnetic Mn-3 triangle and two normal 120degrees antiferromagnetic Mn-3 triangles.
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页码：1 / 4
页数：4
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