Phase Diagrams in Graphene-like Ising Nanoparticles

被引：11

作者：

Kaneyoshi, T. ^{[1
]}

机构：

[1] Nagoya Univ, Midori Ku, 510 Kurosawadai, Nagoya, Aichi 4580003, Japan

来源：

JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM | 2019年 / 32卷 / 02期

关键词：

Phase diagrams; Magnetizations; Nanoparticles; Ising model; Effective-field theory; EFFECTIVE-FIELD THEORY; MAGNETIC-PROPERTIES; MONTE-CARLO; CORE;

D O I：

10.1007/s10948-018-4709-5

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The phase diagrams of four graphene-like nanoparticles described by the Ising model are investigated by the use of the effective-field theory with correlations. The particle is represented by a two-dimensional array of spin-1/2 atoms with two types of exchange interactions, J and J(S). The effects of surface exchange interaction J(S) on the phase diagrams are examined. We have found some characteristic behaviours.

引用

页码：311 / 318

页数：8

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