SCALING PROPERTIES OF THE DYNAMICAL STRUCTURE FACTOR OF PERCOLATING HEISENBERG ANTIFERROMAGNETS

被引：7
|
作者：
TERAO, T
YAKUBO, K
NAKAYAMA, T
机构：
[1] Department of Applied Physics, Hokkaido University
来源：
PHYSICAL REVIEW B | 1994年 / 49卷 / 17期
关键词：
D O I：
10.1103/PhysRevB.49.12281
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The scaling behavior of the dynamical structure factor S(q,omega) of percolating Heisenberg antiferromagnets is investigated in terms of a dynamic scaling argument and numerical calculations. It is found, based on the single-length-scaling postulate, that the asymptotic behavior of S(q,omega) can be characterized by only two exponents: the dynamic exponent z(a) and a new exponent y. This theoretical prediction is confirmed by direct numerical calculations. The values of the exponents z(a) and y are determined for the case of d = 2 percolating Heisenberg antiferromagnets.
引用
收藏
页码：12281 / 12284
页数：4
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