摘要
本文提出了一种更易于学生理解的方式,来讲解大学物理中抗磁性产生的物理机制.这种讲法可以概括如下:首先利用理论推导的方式给出了当电子轨道磁矩方向和外磁场方向平行时,产生抗磁性的机制.此后,利用数值计算的方法分析了当电子轨道磁矩方向和外磁场方向不平行时,电子运动的性质.数值计算的结果以图片的形式进行了展示和说明,并据此解释了在此种情况下产生抗磁性的机制.
In order to make an understandable illustration for undergraduate students,an improved method of explaining the diamagnetism of materials is suggested.First,the mechanism of the diamagnetism is interpreted by theoretical derivations when the orbital magnetic moment of electron is parallel to the external magnetic field.And then,the properties of the motion of electron is analyzed by employing numerical calculations in the case of orbital magnetic moment of electron not parallel to the external magnetic field.The numerical results are illustrated and displayed as figures,which reveal the mechanism of the diamagnetism in this case.
作者
郭然
GUO Ran(Department of Physics,College of Science,Civil Aviation University of China,Tianjin 300300,China)
出处
《大学物理》
2019年第8期14-18,共5页
College Physics
基金
中国民航大学科研启动基金项目(2015QD05X)
国家自然科学基金理论物理专款(11747060)资助
关键词
抗磁性
拉莫尔进动
数值计算
diamagnetism
Larmor precession
numerical calculation
