EXACT SOLUTION OF AN ANISOTROPIC CENTERED HONEYCOMB ISING LATTICE - REENTRANCE AND PARTIAL DISORDER

被引：55

作者：

DIEP, HT ^{[1
]}

DEBAUCHE, M ^{[1
]}

GIACOMINI, H ^{[1
]}

机构：

[1] INST FIS ROSARIO,RA-2000 ROSARIO,SANTA FE,ARGENTINA

来源：

PHYSICAL REVIEW B | 1991年 / 43卷 / 10期

关键词：

D O I：

10.1103/PhysRevB.43.8759

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The exact phase diagram of an anisotropic centered honeycomb Ising lattice is obtained by transforming the system into a 32-vertex model that satisfies the free-fermion condition. We show that for a range of interaction parameters, a paramagnetic reentrant phase exists, on the temperature scale, between two ordered phases. The high-temperature ordered phase possesses partial disorder, in agreement with theoretical conjecture.

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页码：8759 / 8762

页数：4

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