摘要
采用平均场理论研究三维含铁磁耦合相互作用玻色气体的磁化率,讨论了磁化率χ与约化温度t、约化铁磁耦合常数珔I、朗德因子g以及约化磁场强度h的关系.结果表明,顺磁性和弱铁磁耦合强度下铁磁性的增加均有利于磁化率的增大.
Magnetic susceptibility of three-dimensional Bose gas with ferromagnetic interaction was studied under external magnetic field within mean-field theory. The relationships of magnetic susceptibility with reduced temperature, with reduced ferromagnetic coupling constant, with lande factor, and with reduced magnetic field strength were discussed. Ferromagnetism under weak ferromagnetic interaction strength and paramagnetism was found to be conducive to the increase of magnetic susceptibility.
出处
《北京师范大学学报（自然科学版）》
CAS
CSCD
北大核心
2017年第5期532-535,共4页
Journal of Beijing Normal University(Natural Science)
基金
中央高校基本科研业务费资助项目(FRF-BR-16-014A)
北京高等学校青年英才计划资助项目(YETP0389)
关键词
玻色气体
铁磁耦合相互作用
磁化率
Bose gases
ferromagnetic coupling interaction
magnetic susceptibility
