DYNAMICAL SIMULATION OF SPINS ON KAGOME AND SQUARE LATTICES

被引：31
作者：
KEREN, A
机构：
[1] Department of Physics, Columbia University, New York
来源：
PHYSICAL REVIEW LETTERS | 1994年 / 72卷 / 20期
关键词：
D O I：
10.1103/PhysRevLett.72.3254
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The time evolution of classical Heisenberg spins on kagome and square lattices is numerically evaluated. A clear difference is found between the two cases in the time dependence of an individual spin S(t). The stability of possible ground states is discussed in light of the sample-averaged correlation function [S(t)S(0)]. The spectral density j(omega) as a function of temperature is also computed. In the square lattice two phases are observed, whereas in the kagome lattice only motional narrowing is seen. The application of these simulations to SrCrgGa4O19 is discussed.
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页码：3254 / 3257
页数：4
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