THE ISING-MODEL WITH LONG-RANGE FERROMAGNETIC INTERACTIONS

被引：16
|
作者：
WRAGG, MJ
GEHRING, GA
机构：
[1] Dept. of Theor. Phys., Oxford Univ.
来源：
JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL | 1990年 / 23卷 / 11期
关键词：
D O I：
10.1088/0305-4470/23/11/036
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
A variational method based on the nearest-neighbour Ising model is used to derive an expression for the low-temperature correlation function in the Ising model with long-range ferromagnetic interactions. Also by expanding the correlation function directly, the authors demonstrate that the characteristic power-law behaviour at large distances is irrelevant in the critical region, when above the marginal range of interaction.
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页码：2157 / 2164
页数：8
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