Field-induced incommensurate order for the quasi-one-dimensional XXZ model in a magnetic field
Field-induced incommensurate order for the quasi-one-dimensional XXZ model in a magnetic field
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DOI：
10.1103/physrevb.76.224411
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发表时间：
2007-12-01
影响因子：
3.7
通讯作者：
Suzuki, Takahumi
中科院分区：
文献类型：
--
作者：
Okunishi, Kouichi;Suzuki, Takahumi
利用玻色化结合平均场处理链间相互作用的方法，研究了准一维S=1/2XXZ模型在磁场中的相变。我们发现，在低场区域，场致非公度有序是必然存在的，而在高场区域，则出现横向交错有序。在此基础上，我们讨论了最近观察到的BaCo2V2O8的场致相变。
We investigate phase transitions of the quasi-one-dimensional S=1/2 XXZ model in a magnetic field, using bosonization combined with a mean-field treatment of the interchain interaction. We then find that the field-induced incommensurate order is certainly realized in the low-field region, while transverse staggered order appears in the high-field region. On the basis of the result, we discuss the field-induced phase transition recently observed for BaCo2V2O8.