“理论物理”课程视域下的正五边形格点热输运性质  

Thermal Transport Property of Regular Pentagon Lattices from Perspective of Theoretical Physics Curriculum

作　　者：陈桂林 冯慕缇 金海兰 廖艳华 CHEN Guilin;FENG Muti;JIN Hailan;LIAO Yanhua(School of Mathematics and Physics,Hubei Polytechnic University,Huangshi Hubei 435003;Economic Development Bureau,Jilin Changbai Mountain Protection Development Management Committee,Yanbian Korean Autonomous Prefecture Jilin 133613)

机构地区：[1]湖北理工学院数理学院,湖北黄石435003 [2]吉林省长白山保护开发区管理委员会经济发展局,吉林延边朝鲜族自治州133613

出　　处：《湖北理工学院学报》2024年第1期62-66,共5页Journal of Hubei Polytechnic University

基　　金：湖北省高等学校省级教学改革研究项目(项目编号:2020660);国家级大学生创新创业训练计划项目(项目编号:202010920018);湖北理工学院教学研究项目(项目编号:2020A09);南昌航空大学大学物理国家级实验教学示范中心开放课题基金项目(项目编号:WLSY2104)。

摘　　要：借助伊辛模型的平均场理论,通过引入热力学统计物理学中的配分函数,研究了正五边形格点的磁化强度、自由能和热容随磁场与交换强度的变化关系。研究表明:磁化强度会随着磁场和交换强度的变化呈现磁化台阶,且台阶的宽度与两者强度的竞争有关;磁场和格点间交换强度的竞争会导致正五边形格点结构的不稳定;热容也会出现双峰结构,且双峰出现的位置、强度和双峰间距也会受到磁场和交换强度的调制。Based on the mean-field theory of Ising model and the partition function in thermodynamic statistical physics,the variation of magnetization,free energy and heat capacity of regular pentagon lattice with magnetic field and exchange intensity has been studied.It is shown that the magnetization intensity presents a magnetization step with the change of magnetic field and exchange intensity,and the width of the step is related to the competition between the manetic field and the exchange intensity;the competition between the magnetic field and the exchange intensity between the lattices leads to the instability of the regular pentagon lattice structure;the heat capacity appears as double peaks structure,and the position,intensity and spacing of the double peaks are also modulated by the magnetic field and the exchange intensity.

关 键 词：伊辛模型 阻挫 热输运 

分 类 号：O482.51[理学—固体物理]