Perpendicular Magnetic Anisotropy in CoFeB/Pd Bilayers

被引:34
作者
Fowley, Ciaran [1 ]
Decorde, Nicolas [1 ]
Oguz, Kaan [1 ]
Rode, Karsten [1 ]
Kurt, Huseyin [1 ]
Coey, J. M. D. [1 ]
机构
[1] Trinity Coll Dublin, Sch Phys, CRANN, Dublin 2, Ireland
基金
爱尔兰科学基金会;
关键词
Perpendicular magnetic anisotropy (PMA); thin-film capacitors; PD/CO;
D O I
10.1109/TMAG.2010.2044374
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Perpendicular magnetic anisotropy is observed in ultrathin (0.6 nm) amorphous Co40Fe40B20 when sputtered on an MgO (001) buffer layer and capped with Pd. The layers are superparamagnetic with a blocking temperature of similar to 230 K, below which they show an exponential temperature dependence of coercivity. Perpendicular magnetic anisotropy is observed in the as-deposited state and the mechanism is different from that of CoFeB/Pt, which requires postannealing. These ultrathin layers could be a model system for studies of electric field effects on magnetic anisotropy.
引用
收藏
页码:2116 / 2118
页数:3
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