| Cu88Co12合金的巨磁电阻及其微结构的研究 |
| |
| 引用本文： | 王文东,赖武彦.Cu88Co12合金的巨磁电阻及其微结构的研究[J].电子显微学报,1997,16(3):290-294. |
| |
| 作者姓名： | 王文东 赖武彦 |
| |
| 作者单位： | 北京科技大学材料物理系，中国科学院物理研究所 |
| |
| 摘 要： | 本文利用场离子显微镜－原子探针及电镜研究了具有巨磁电阻效应的甩带Ｃｕ８８Ｃ ｏ１２合金的微结构。Ｃｕ８８Ｃｏ１２合金经４５０℃退火半小时后发邓有明显的巨磁电阻。
|
| 关 键 词： | 巨磁电阻 场镜－原子探讨 退火 铜钴合金 微结构 |
Study on Microstructure of Melt Spun Cu 88 Co 12 Alloy with Giant Magnetoresistance |
| |
| Wang Wendong,Zhu Fengwu,Weng Jun,Xiao Jimei.Study on Microstructure of Melt Spun Cu 88 Co 12 Alloy with Giant Magnetoresistance[J].Journal of Chinese Electron Microscopy Society,1997,16(3):290-294. |
| |
| Authors: | Wang Wendong Zhu Fengwu Weng Jun Xiao Jimei |
| |
| Abstract: | The microstructure of melt spun Cu 88 Co 12 alloy was studied utilizing transmisson electron microscope (TEM) and field ion microscope with atom probe (FIM AP).This alloy has obvious giant magnetoresistance(GMR)after annealed at 723K for 0 5h.By means of FIM AP,the spherical Co precipitates were clearly observed for the first time and exhibit size distribution in this alloy.The average diameter of particles is about 1 7nm in the specimen annealed at 723K for 2h,which has the highest GMR of 30 7% at 1 5K.The large Co precipitates were observed at grain boundaries by TEM.These results are very useful to test the present theory about relationship between GMR and microstructure. |
| |
| Keywords: | giant magnetoresistance field ion microscope with atom probe size distribution of particles Co precipitates |
| 本文献已被 CNKI 维普 等数据库收录！ |
