Hexagonal Type Ising Nanowire with Spin-1 Core and Spin-2 Shell Structure

作     者：Mehmet Ertas Ersin Kantar 

作者机构：Department of Physics Erciyes University 

出 版 物：《Communications in Theoretical Physics》 (理论物理通讯（英文版）)

年 卷 期：2015年第64卷第10期

页      面：401-408页

核心收录：

学科分类：07[理学] 070205[理学-凝聚态物理] 0704[理学-天文学] 0702[理学-物理学] 

主　　题：hexagonal Ising nanowire mixed spin-(1 2) effectiv 

摘      要：Thermodynamic properties and phase diagrams of a mixed spin-(1,2) Ising ferrimagnetic system with single ion anisotropy on hexagonal nanowire are studied by using effective-field theory with correlations. The susceptibility,internal energy and specific heat of the system are numerically examined and some interesting phenomena in these quantities are found. The effect of the Hamiltonian parameters on phase diagrams are examined in detail. Besides second-order phase transition, lines of first-order transition and tricritical points are found. In particular, we found that for some negative values of single-ion anisotropies, there exist first-order phase transitions.