Mixed spin-1/2 and 3/2 Ising model with multi-spin interactions on a decorated square lattice

被引：16

作者：

Stubna, V. ^{[1
]}

Jascur, M. ^{[1
]}

机构：

[1] PJ Safarik Univ Kosice, Inst Phys, Dept Theoret Phys & Astrophys, Pk Angelinum 9, Kosice 04001, Slovakia

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2017年 / 442卷

关键词：

Mixed-spin Ising model; Many-body interactions; Exact results; Decorated lattice; Phase transitions; 3-SITE 4-SPIN INTERACTION; HIGHER-ORDER EXCHANGE; BIQUADRATIC EXCHANGE; NUMBER CORRELATIONS; PLANAR LATTICES; EFFECTIVE-FIELD; FERROMAGNET; MAGNETIZATION; SYSTEM;

D O I：

10.1016/j.jmmm.2017.07.011

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A mixed spin-1/2 and spin-3/2 Ising model on a decorated square lattice with a nearest-neighbor interaction, next-nearest-neighbor bilinear interaction, three-site four-spin interaction and single-ion anisotropy is exactly investigated using a generalized decoration-iteration transformation, Callen-Suzuki identity and differential operator technique. The ground-state and finite-temperature phase boundaries are obtained by identifying all relevant phases corresponding to minimum internal or free energy of the system. The thermal dependencies of magnetization, correlation functions, entropy and specific heat are also calculated exactly and the most interesting cases are discussed in detail. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：364 / 370

页数：7

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