On the Ising model with strongly anisotropic external field

被引：13

作者：

Nardi, FR ^{[1
]}

Olivieri, E

Zahradník, M

机构：

[1] Univ Roma Tor Vergata 2, Dipartimento Matemat, I-00133 Rome, Italy

[2] Charles Univ, Fac Math & Phys, Prague, Czech Republic

来源：

JOURNAL OF STATISTICAL PHYSICS | 1999年 / 97卷 / 1-2期

关键词：

Ising model; anisotropic field; phase diagram; cluster expansion;

D O I：

10.1023/A:1004662917583

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In this paper we analyze the equilibrium phase diagram of the two-dimensional ferromagnetic n.n. Ising model when the external field takes alternating signs on different rows. We show that some of the zero-temperature coexistence lints disappear at every positive sufficiently small temperature, whereas one (and only one) of them persists for sufficiently low temperature.

引用

页码：87 / 144

页数：58

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