Co60Fe20B20合金薄膜磁、热、电特性及晶化动力学研究（英文）

被引：3
|
作者：
王可
徐展
黄亚
邱于珍
董硕
机构：
[1] LabforInformationStorageandFilmTechnology,CollegeofInformationScienceandEngineering,HuaqiaoUniversity
来源：
Science China Materials | 2016年 / 59卷 / 08期
关键词：
Co60Fe20B20; magnetic properties; thermal properties; electrical properties; crystallization;
D O I：
暂无
中图分类号：
TG132 [特种物理性质合金]; TB383.2 [];
学科分类号：
摘要：
本文研究了溅射制备的三明治结构Ta/Co60Fe20B20/MgO合金薄膜的磁、热、电及晶化动力学特性.10–100 nm厚度的沉积态合金薄膜单位面积磁化强度和厚度呈现了极好的线性相关性,由此拟合出沉积态合金薄膜有效饱和磁化强度高达793.7 emu cm（-3）.转角磁测量揭示了沉积态的合金薄膜具有面内磁单轴各向异性,其大小为10～4 erg cm-3数量级.发现4重对称的立方结构磁各向异性随着退火温度升高而增大,这与XRD衍射测量的样品结构的变化一致.热磁曲线揭示了合金薄膜随温度有相当大变动的饱和磁化强度,这来源于合金晶化与温度相关的铁磁行为的竞争作用.伴随结构变化,观察到明显的合金薄膜电阻随温度的变化.通过变速率加热电阻测量得到晶化激活能为1.43 eV,表明该合金材料具有很好的热稳定性.
引用
收藏
页码：639 / 647
页数：9
相关论文
共 8 条
  • [1] Crystallization Behavior and Thermal Analysis of CoFeB Thin Films[J] . Jiun-Yi Tseng,Yuan-Tsung Chen,Z. G. Chang,C. W. Wu,L. C. Yang,Hongbin Bei.Journal of Nanomaterials . 2015
  • [2] Effect of annealing temperature on formation of superparamagnetism in CoFeB/MgO/CoFeB magnetic tunnel junctions[J] . Jiangwei Cao,Yan Liu,Yang Ren,Fulin Wei,P.P. Freitas.Applied Surface Science . 2014
  • [3] Microstructure and functional properties of Fe 73.5 Cu 1 Nb 3 Si 15.5 B 7 amorphous alloy[J] . Vladimir A. Blagojevi?,Milica Vasi?,Bohumil David,Du?an M. Mini?,Nadě?da Pizúrová,Tomá? ?ák,Dragica M. Mini?.Materials Chemistry and Physics . 2013
  • [4] Perpendicular magnetic anisotropy in CoFeB/X (X=MgO, Ta, W, Ti, and Pt) multilayers[J] . B. Cui,C. Song,G.Y. Wang,Y.Y. Wang,F. Zeng,F. Pan.Journal of Alloys and Compounds . 2013
  • [5] In-plane magnetic anisotropy and coercive field dependence upon thickness of CoFeB
    Kipgen, Lalminthang
    Fulara, Himanshu
    Raju, M.
    Chaudhary, Sujeet
    [J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2012, 324 (19) : 3118 - 3121
  • [6] Assessment of Se based phase change alloy as a candidate for non-volatile electronic memory applications
    Wang, K
    Steimer, C
    Detemple, R
    Wamwangi, D
    Wuttig, M
    [J]. APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 2005, 81 (08): : 1601 - 1605
  • [7] Compositional change of MgO barrier and interface in CoFeB/MgO/CoFeB tunnel junction after annealing .2 J Y Bae,W C Lim,H J Kim,T D Lee,K W Kim,T W Kim. Journal of applied physics . 2006
  • [8] Effect of thickness of MgO, Co-Fe-B, and Ta layers on perpendicular magnetic anisotropy of[Ta/Co 60 Fe 20 B 20 /MgO] 5 multilayered films .2 Yuan,Fu-Te,Lin,Yi-Hung,Mei,J. K,Hsu,Jen-Hwa,Kuo,P. C. Journal of Applied Physics . 2012
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