Quantum magnetostriction oscillations in a two-dimensional antiferromagnet with spin-phonon interaction in a magnetic field

被引：0
|
作者：
S. S. Aplesnin
机构：
[1] Russian Academy of Sciences,Kirenskii Institute of Physics, Siberian Division
来源：
Journal of Experimental and Theoretical Physics Letters | 2004年 / 79卷
关键词：
75.10.Jm; 75.30.Cr; 75.80.+q;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The ground state of a two-dimensional antiferromagnet with S=1/2 interacting with acoustic phonons in a magnetic field was studied by the quantum Monte Carlo method in the nonadiabatic approximation. Oscillations of the amplitude of the root-mean-square displacement of ions and the average phonon occupation number in a magnetic field were found. Local maxima were revealed in the distribution functions of site magnetic moments and ion displacements. The saturation magnetization was calculated as a function of the spin-phonon coupling constant.
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页码：53 / 56
页数：3
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