摘要
研究了顺磁性晶体CeF3内交换作用有效场随温度的变化关系,给出了其形式为Hin=(-0·68-0·002T)×10-6M.结合该关系,用量子理论的计算得到了与实验值吻合较好的磁化率倒数、Verdet常数倒数随温度的变化关系,并且用光磁效应的概念和规律对结果作了进一步分析,指出光诱导促进了该晶体内电子间的交换作用.
The exchange interaction between electrons exists in the paramagnetic media CeF3. The relation of the effective exchange field Hin to the temperature is shown to be Hin= （ - 0.68 - 0.002T）×10^-6 M. By means of this relation and the quantum theory, the inverses of the magnetic susceptibility and Verdet constant of CeF3 crystal as a function of temperature are calculated. The calculated V^-l -T and χm^-1-T curves are in good agreement with the measured results. The results are further discussed in Terms of the concepts and rules of photo-magnetic effect.
出处
《物理学报》
SCIE
EI
CAS
CSCD
北大核心
2006年第6期3091-3094,共4页
Acta Physica Sinica
基金
中国矿业大学优秀创新团队基金(批准号:2004.Zch012)资助的课题~~
关键词
CeF3晶体
交换作用
磁光效应
光磁效应
CeF3 crystal, exchange interaction, magneto-optic effect, photo-magnetic effect
