中国物理B ›› 2012, Vol. 21 ›› Issue (8): 87503-087503.doi: 10.1088/1674-1056/21/8/087503

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇    下一篇

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

R. Masroura b, M. Hamedounc d, A. Benyoussefb c d   

  1. a Laboratory of Materials, Processes, Environment and Quality, Cady Ayyed University, National School of Applied Sciences, Safi, Morocco;
    b LMPHE (URAC-12), Faculté des Sciences, Université Mohamed V-Agdal, Rabat, Morocco;
    c Institute for Nanomaterials and Nanotechnologies, MAScIr, Rabat, Morocco;
    d Academie Hassan II des Sciences et Techniques, Rabat, Morocco
  • 收稿日期:2011-11-29 修回日期:2012-01-15 出版日期:2012-07-01 发布日期:2012-07-01

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

R. Masroura b, M. Hamedounc d, A. Benyoussefb c d   

  1. a Laboratory of Materials, Processes, Environment and Quality, Cady Ayyed University, National School of Applied Sciences, Safi, Morocco;
    b LMPHE (URAC-12), Faculté des Sciences, Université Mohamed V-Agdal, Rabat, Morocco;
    c Institute for Nanomaterials and Nanotechnologies, MAScIr, Rabat, Morocco;
    d Academie Hassan II des Sciences et Techniques, Rabat, Morocco
  • Received:2011-11-29 Revised:2012-01-15 Online:2012-07-01 Published:2012-07-01
  • Contact: R. Masrour E-mail:rachidmasrour@hotmail.com

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 (∞)) by means of mean-field and high temperature series expansion (HTSE) combined with the Padé approximant calculations. The scaling law of magnetic susceptibility and magnetization is used to determine the critical exponent γ, ν eff (mean), ratio of the critical exponents γ/ν, and magnetic properties of Ising and XY antiferromagnetic thin-films for different thickness layers n=2, 3, 4, 5, 6, and bulk (∞).

关键词: high-temperature series expansions, mean-field theory, antiferromagnetic thin film, Padé approximant, Néel temperature, critical exponent

Abstract: 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 (∞)) by means of mean-field and high temperature series expansion (HTSE) combined with the Padé approximant calculations. The scaling law of magnetic susceptibility and magnetization is used to determine the critical exponent γ, ν eff (mean), ratio of the critical exponents γ/ν, and magnetic properties of Ising and XY antiferromagnetic thin-films for different thickness layers n=2, 3, 4, 5, 6, and bulk (∞).

Key words: high-temperature series expansions, mean-field theory, antiferromagnetic thin film, Padé approximant, Néel temperature, critical exponent

中图分类号:  (Antiferromagnetics)

  • 75.50.Ee
75.70.-i (Magnetic properties of thin films, surfaces, and interfaces) 68.35.Rh (Phase transitions and critical phenomena) 75.30.Cr (Saturation moments and magnetic susceptibilities)