摘要
计算了ＣｅｘＹ３－ｘＡｌ５Ｏ１２晶体中Ｃｅ３＋由晶场导致的４ｆ多重态之间的耦合对Ｃｅ３＋离子基态磁矩和磁光Ｆａｒａｄａｙ旋转的影响及其温度特性．结果表明，Ｃｅ３＋４ｆ２Ｆ７／２和２Ｆ５／２多重态的耦合，使Ｃｅ３＋的基态磁矩在温度３００Ｋ和２０Ｋ时分别减小３０％和４６％；使Ｆａｒａｄａｙ旋转绝对值减小，当入射光波长为４８０ｎｍ时，使Ｆａｒａｄａｙ旋转绝对值在温度３００Ｋ和２０Ｋ时分别减小３３％和３７％；
Abstract The influence of the mixing of multiplets of Ce 3+ ions in Ce x Y 3- x Al 5O 12 on the magnetic moment,the Faraday rotation and magneto optic coefficient of the ground state has been calculated.It is found that,the mixing of the 4f 1 2F 7/2 multiplet with the 2F 5/2 multiplet makes the magnetic moment decrease by 30% at 300K and 46% at 20K,the absolute value of the Faraday rotation at 480nm wavelength decrease by 33% at 300K and 37% at 20K and with temperature decrease,the magneto optic coefficient increases.
出处
《物理学报》
SCIE
EI
CAS
CSCD
北大核心
1997年第1期170-176,共7页
Acta Physica Sinica
基金
国家自然科学基金
