均匀磁化磁介质麦氏关系的推演及其等磁场、等磁化热容量比较  

Derivation of Maxwell's Relation of Magnetic Medium With Uniform Magnetization and Comparison of Equal Magnetic Field and Equal Magnetized Heat Capacity

作　　者：赵世华 梁平 彭鸿雁[1] 李再金 王映品 蔡扬仪 陈韵琪 ZHAO Shihua;LIANG Ping;PENG Hongyan;LI Zaijin;WANG Yingpin;CAI Yangyi;CHEN Yunqi(College of Physics and Electronic Engineering,Hainan Normal University,Haikou 571158,China)

机构地区：[1]海南师范大学物理与电子工程学院,海南海口571158

出　　处：《信阳师范学院学报（自然科学版）》2023年第3期433-437,共5页Journal of Xinyang Normal University(Natural Science Edition)

基　　金：国家自然科学基金项目(12161030);海南省自然科学基金项目(522MS062);海南省高等学校教育教学改革研究项目(Hnjg2022-55);海南省高等学校教育教学改革研究重点项目(Hnjg2020ZD-17)。

摘　　要：从忽略和考虑磁介质的体积变化两种条件入手,推演了均匀磁化磁介质系统的8种麦氏关系。结合简单系统的热容量概念,讨论了均匀磁化磁介质系统的等磁场热容量和等磁化热容量的物理意义。最后,采用雅可比行列式进一步讨论了两种热容量的差值问题。Eight types of Maxwell's relations for a homogeneous magnetized magnetic medium system are derived by neglecting and considering the volume change of the magnetic medium.Combined with the concept of heat capacity of a simple system,the physical significance of the equal magnetic field heat capacity and the equal magnetizing heat capacity of a homogeneous magnetized magnetic medium system is discussed.Finally,the difference between the two heat capacities mentioned above is further discussed by using the Jacobian determinant.

关 键 词：均匀磁化 磁介质 热容(量) 麦氏关系 雅可比行列式 

分 类 号：O414.1[理学—理论物理]