Tetramerization of a frustrated spin-1/2 chain

被引：22
|
作者：
Becca, F [1 ]
Mila, F
Poilblanc, D
机构：
[1] Natl Simulat Ctr, INFM Democritos, I-34014 Trieste, Italy
[2] SISSA, I-34014 Trieste, Italy
[3] Univ Lausanne, Inst Phys Theor, CH-1015 Lausanne, Switzerland
[4] Univ Toulouse 3, Phys Theor Lab, CNRS, UMR 5152, F-31062 Toulouse, France
来源：
PHYSICAL REVIEW LETTERS | 2003年 / 91卷 / 06期
关键词：
D O I：
10.1103/PhysRevLett.91.067202
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We investigate a model of a frustrated spin-1/2 Heisenberg chain coupled to adiabatic phonons with a general form of magnetoelastic coupling. For large enough frustration and lattice coupling, a new tetramerized phase with three different bond lengths is found. We argue that the zigzag spin-1/2 chain LiV2O5 might be a good candidate to observe such a phase.
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页数：4
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