| 掺Pb,Ga对Ce:YIG晶体磁光性能的影响 |
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| 引用本文： | 张国营,程勇,张学龙,夏天,薛刘萍.掺Pb,Ga对Ce:YIG晶体磁光性能的影响[J].物理学报,2006,55(5):2601-2605. |
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| 作者姓名： | 张国营 程勇 张学龙 夏天 薛刘萍 |
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| 作者单位： | (1)上海理工大学医疗器械学院，上海 200093; (2)中国矿业大学理学院，徐州 221008 |
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| 摘 要： | 研究了掺Pb,Ga对Ce:YIG晶体的晶场、交换作用和磁光Faraday效应的影响.当Ga3+离子取代量为12%时，交换作用有效场减少51%，导致Ce3+离子最低两个能级的占有概率之差减少49%.Ga3+离子取代，同时影响分子场和晶场；而Pb2+离子的取代，只影响晶体场，对分子场的影响甚微.掺杂对稀土石榴石晶体的磁光性能有较大影响.
关键词：
PbGaCe:YIG晶体
晶场
超交换作用
磁光效应
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| 关 键 词： | PbGaCe:YIG晶体 晶场 超交换作用 磁光效应 |
| 文章编号： | 1000-3290/2006/55（05）2601-05 |
| 收稿时间： | 08 28 2005 12:00AM |
| 修稿时间： | 2005-08-282005-10-23 |
Effect of Pb, Ga doping on magneto-optical propertics of Ce:YIG crystal |
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| Zhang Guo-Ying,Cheng Yong,Zhang Xue-Long,Xia Tian,Xue Liu-Ping.Effect of Pb, Ga doping on magneto-optical propertics of Ce:YIG crystal[J].Acta Physica Sinica,2006,55(5):2601-2605. |
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| Authors: | Zhang Guo-Ying Cheng Yong Zhang Xue-Long Xia Tian Xue Liu-Ping |
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| Institution: | 1 College of Sciences, China University of Mining and Technology, Xuzhou 221008, China ; 2 College of Medical Mechanism, Shanghai University of Science and Technology, Shanghai 200093, China |
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| Abstract: | The effects of Pb, Ga doping on the crystal field, superexchange interaction and magneto-optical effect of Ce:YIG crystal are studied based on the quantum theory. It is found that when the molecular concentration of Ga doping is 12%, the molecular field on the Ce3+ ion is reduced by 51% and the difference of occupation probability between the two lowest energy levels of the Ce3+ is reduced by 49%. The Ga doping affects the crystal field and molecular field at the same time, while the Pb doping affects the crystal field only. |
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| Keywords: | PbGaCe:YIG crystal crystal field superexchange interaction magneto-optical effect |
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