摘要
本文在伊辛模型的框架内考虑随机晶场作用的键稀疏铁磁自旋系统的临界特性 ,有效场理论用于推导蜂窝格子的磁化表达式 ,重点研究系统的临界特性 ,在某些晶场和随机浓度的范围内呈现出一些新的临界特性 ,我们讨论了两种不同随机浓度和晶场对临界特性的影响 。
The bond dilution ferromagnetic spin-1 system with random crystal field is considered in the framework of Ising model.The effective field theory is applied to derive the expressions of magnetizations for honeycomb lattice.Special emphasis is placed on critical properties of the system.New critical properties are obtained in the certain range of crystal field,concentration of random crystal field and bond dilution.We discuss the influence of the two random concentrations and crystal field on critical properties.Some phenomena are not discovered in Previous literature.A detailed description of the phase transition is presented.
出处
《哈尔滨师范大学自然科学学报》
CAS
2001年第4期75-79,共5页
Natural Science Journal of Harbin Normal University
基金
江苏省教育厅自然科学基金 (编号 :0 0 SJB140 0 0 3)
江苏省薄膜材料重点实验室开放基金 (编号 :K2 0 2 2 )资助项目
