Large modulation of perpendicular magnetic anisotropy by CoPt3 induction in Co/Pt multilayers with Fe2O3 inserting

被引：1

作者：

Li, Minghua ^{[1
,2
]}

Liang, Hongming ^{[1
,2
]}

Chen, Yu ^{[1
,2
]}

Liu, Zhuoyao ^{[1
,2
]}

Jia, Jingran ^{[1
,2
,3
]}

Liu, Yantai ^{[1
,2
]}

Shi, Hui ^{[3
]}

Yu, Guanghua ^{[1
,2
]}

机构：

[1] Univ Sci & Technol Beijing, Dept Mat Phys & Chem, Beijing 100083, Peoples R China

[2] Univ Sci & Technol Beijing, Beijing Lab Met Mat & Proc Modern Transportat, Beijing 100083, Peoples R China

[3] China Elect Technol Grp Corp, Res Inst 58, Wuxi 214035, Peoples R China

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2023年 / 586卷

基金：

北京市自然科学基金;

关键词：

Co/Pt multilayers; Interface regulation; Perpendicular magnetic anisotropy; Fe; 2; O; 3; inserting; Thermal stability; CoPt; FILMS;

D O I：

10.1016/j.jmmm.2023.171218

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effect of ultra-thin discontinuous Fe2O3 inserting on the perpendicular magnetic anisotropy (PMA) in Ta(3)/ Pt(1)/[Pt(1)/Fe2O3(t)/Co(0.4)]3/Pt(2)/Ta(4) films(unit:nm)is studied. It is found that the addition of Fe2O3 blocked the connection between Pt and Co at the Pt/Co interface and prevented the generation of Co/Pt superlattice structure in the as-deposited film, so that the film does not show PMA. After 400 celcius annealing, CoPt3(1 1 1) structure was formed and the film exhibited PMA. The film with Fe2O3 inserting has better CoPt3(1 1 1) crystal structure and lower coercivity than those without inserting. Inserting Fe2O3 is good way to increase the PMA and thermal stability in [Co/Pt]n multilayer.

引用

页数：7

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