| Co／Al多层膜磁性的界面效应和维度效应 |
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| 引用本文： | 刘明升,姜恩永.Co／Al多层膜磁性的界面效应和维度效应[J].天津大学学报(自然科学与工程技术版),1995,28(2):186-189. |
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| 作者姓名： | 刘明升 姜恩永 |
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| 基金项目： | 国家自然科学基金,天津市青年科学基金 |
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| 摘 要： | 蒸发法制备的Ｃｏ／Ａｌ多层膜的饱和磁化强度Ｍｓ因界面效应随Ｃｏ层厚度减小而下降，并存在一个０．６８ｎｍ的磁性死层、磁性层减小时，Ｍｓ与温度关系不再满足ＢｌｏｃｈＴ＾３／２定律，Ｍｓ随温度下降更快，表现出低于三维的低维磁性特征。同时，Ｃｏ／Ａｌ多层膜的居里温度随Ｃｏ层厚度减小而减小，遵从准二维标度定律，得出居里温度维度位移因子为０．６２。
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| 关 键 词： | 多层膜 磁性 维度效应 界面效应 钴 铝 |
INTERFACIAL AND DIMENSIONAL EFFECT IN MAGNETIC Co/Al MULTILAYERS |
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| Liu Mingsheng,Jiang Enyong,Liu Yuguang,Gu Weidong.INTERFACIAL AND DIMENSIONAL EFFECT IN MAGNETIC Co/Al MULTILAYERS[J].Journal of Tianjin University(Science and Technology),1995,28(2):186-189. |
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| Authors: | Liu Mingsheng Jiang Enyong Liu Yuguang Gu Weidong |
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| Institution: | Dept.of Applied Physics |
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| Abstract: | series of Co/Al multilayers(MLs)were fabricated by an E-gun evaporation method.The magnetization of these MLs decreases with the decrease of the thickness of Co layers and there exists a magnetic deadlayer of 0.68nm.The thinner the Co layer,the faster the magnetisation goes beyond the Bloch T3/2 law with the increase of the temperature,thus Co/Al MLs demonstrate a low dimensional effect(<3).Meanwhile,Curie temperature in Co/Al MLs obeys the quasi-2 dimensional scale law,through which we obtained a dimensional shift exponent of 0. 62 of Curie temperature. |
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| Keywords: | multilayer interface magnetism Curie temperature dimensional effect |
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