Path integral approach of quantum Heisenberg planar spin glass model in the presence of random field

被引：0
|
作者：
Ma, YQ [1 ]
机构：
[1] Nanjing Univ, Dept Phys, Nanjing 210093, Peoples R China
[2] Nanjing Univ, Solid State Microstruct Lab, Nanjing 210093, Peoples R China
来源：
COMMUNICATIONS IN THEORETICAL PHYSICS | 1998年 / 30卷 / 01期
关键词：
Heisenberg planar model; phase transition;
D O I：
暂无
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
A quantum version of the site-random Heisenberg planar XY model in a random field is presented in the boson representation. Like classical spherical model in the spin space, the model can be solved exactly within the coherent state path integral representation. The phase diagram is obtained, and the effects of the randomness and quantum fluctuations on the onset of a spin glass phase are discussed.
引用
收藏
页码：121 / 124
页数：4
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