中国物理B ›› 2014, Vol. 23 ›› Issue (4): 46801-046801.doi: 10.1088/1674-1056/23/4/046801

• CONDENSED MATTER: STRUCTURAL, MECHANICAL, AND THERMAL PROPERTIES • 上一篇    下一篇

An effective-field theory study of hexagonal Ising nanowire:Thermal and magnetic properties

Yusuf Kocakaplana, Ersin Kantarb   

  1. a Institute of Science, Erciyes University, 38039 Kayseri, Turkey;
    b Department of Physics, Erciyes University, 38039 Kayseri, Turkey
  • 收稿日期:2013-07-31 修回日期:2013-10-04 出版日期:2014-04-15 发布日期:2014-04-15

An effective-field theory study of hexagonal Ising nanowire:Thermal and magnetic properties

Yusuf Kocakaplana, Ersin Kantarb   

  1. a Institute of Science, Erciyes University, 38039 Kayseri, Turkey;
    b Department of Physics, Erciyes University, 38039 Kayseri, Turkey
  • Received:2013-07-31 Revised:2013-10-04 Online:2014-04-15 Published:2014-04-15
  • Contact: Ersin Kantar E-mail:ersinkantar@erciyes.edu.tr
  • About author:68.35.Rh; 05.50.+q; 75.60.-d; 62.23.Hj

摘要: By means of the effective-field theory (EFT) with correlations, the thermodynamic and magnetic quantities (such as magnetization, susceptibility, internal energy, specific heat, free energy, hysteresis curves, and compensation behaviors) of the spin-1/2 hexagonal Ising nanowire (HIN) system with core/shell structure have been presented. The hysteresis curves are obtained for different values of the system parameters, in both ferromagnetic and antiferromagnetic cases. It has been shown that the system only undergoes a second-order phase transition. Moreover, from the thermal variations of the total magnetization, the five compensation types can be found under certain conditions, namely the Q-, R-, S-, P-, and N-types.

关键词: hexagonal Ising nanowire, effective-field theory, hysteresis curve, compensation behavior

Abstract: By means of the effective-field theory (EFT) with correlations, the thermodynamic and magnetic quantities (such as magnetization, susceptibility, internal energy, specific heat, free energy, hysteresis curves, and compensation behaviors) of the spin-1/2 hexagonal Ising nanowire (HIN) system with core/shell structure have been presented. The hysteresis curves are obtained for different values of the system parameters, in both ferromagnetic and antiferromagnetic cases. It has been shown that the system only undergoes a second-order phase transition. Moreover, from the thermal variations of the total magnetization, the five compensation types can be found under certain conditions, namely the Q-, R-, S-, P-, and N-types.

Key words: hexagonal Ising nanowire, effective-field theory, hysteresis curve, compensation behavior

中图分类号:  (Phase transitions and critical phenomena)

  • 68.35.Rh
05.50.+q (Lattice theory and statistics) 75.60.-d (Domain effects, magnetization curves, and hysteresis) 62.23.Hj (Nanowires)