Mean-field and high temperature series expansion calculations of some magnetic properties of Ising and XY antiferromagnetic thin-films

• 来源期刊: 中国物理B（英文版）
• 关键词: high-temperature series expansions mean-field theory antiferromagnetic thin film Padé approximant Néel temperature critical exponent
• 年，卷（期）: 2012,（8）
• 页码范围: 487-493
• 页数: 7页
• 语种: 英文
• DOI: 10.1088/1674-1056/21/8/087503

摘要

In this work,the magnetic properties of Ising and XY antiferromagnetic thin-films are investigated each as a function of Néel temperature and thickness for layers (n =2,3,4,5,6,and bulk (oo)) by means of a mean-field and high temperature series expansion (HTSE) combined with Padé approximant calculations.The scaling law of magnetic susceptibility and magnetization is used to determine the critical exponent % veff (mean),ratio of the critical exponents γ/v,and magnetic properties of Ising and XY antiferromagnetic thin-films for different thickness layers n =2,3,4,5,6,and bulk (∞).