| 热处理及厚度对Co90Fe10薄膜磁电阻的影响 |
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| 引用本文： | 陈森,张师平,吴平,付建波,谢剑桥,魏家琦.热处理及厚度对Co90Fe10薄膜磁电阻的影响[J].实验室科学,2012,15(6):90-93. |
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| 作者姓名： | 陈森 张师平 吴平 付建波 谢剑桥 魏家琦 |
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| 作者单位： | 北京科技大学 数理学院,北京,100083 |
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| 基金项目： | 北京科技大学研究型教学示范课建设项目，北京科技大学教育教学改革研究项目 |
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| 摘 要： | 利用电子束真空蒸发方法制备了不同厚度的Co90Fe10磁性薄膜,研究了热处理及厚度对薄膜磁电阻的影响。利用四探针法测量了薄膜的磁电阻,利用磁力显微镜观察了薄膜的磁畴结构。结果表明:热处理可以提高薄膜的磁电阻,尤其是厚度较小的样品,效果更加明显。对于厚度较大的薄膜,热处理可以改善磁织构,磁畴分布更加有序,出现了类巨磁电阻特征。
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| 关 键 词： | Co90Fe10薄膜 热处理 磁电阻 磁畴 |
Effect of heat treatment and thickness on Co90Fe10 thin film's Magnetoresistance |
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| CHEN Sen
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ZHANG Shi-ping
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WU Ping
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FU Jian-bo
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XIE Jian-qiao
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WEI Jiao-qi.Effect of heat treatment and thickness on Co90Fe10 thin film's Magnetoresistance[J].Laboratory Science,2012,15(6):90-93. |
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| Authors: | CHEN Sen ZHANG Shi-ping WU Ping FU Jian-bo XIE Jian-qiao WEI Jiao-qi |
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| Institution: | CHEN Sen,ZHANG Shi-ping,WU Ping,FU Jian-bo,XIE Jian-qiao,WEI Jiao-qi(School of Mathematics And Physics,Beijing University of Science and Technology,Beijing 100083,China) |
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| Abstract: | Different thickness Co90Fe10 thin films were prepared by vacuum electron-beam deposition method,effects of heat treatment and thickness on Magnetoresistance（MR） of Co90Fe10 thin films were investigated.MR value of Co90Fe10 thin films was measured by four-point probe technology,structure of magnetic domains was observed by magnetic force microscope.The experiment results showed that heat treatment can improve the magnetoresistance especially on the thin film which has a thinner thickness.For the thicker thin film,heat treatment can improve magnetic texture,magnetic domain distributed more orderly and a kind of giant magneto resistance characteristics was observed. |
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| Keywords: | Co90Fe10 thin films heat treatment magnetoresistance magnetic domains |
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