DocumentCode :
87931
Title :
Stabilized Perpendicular Magnetic Anisotropy 
CoPtCu Thin Film at Room Temperature
Author :
An-Cheng Sun ; Chuan-Fa Huang ; Li, L.J. ; Sheng-Fu Chen ; Yu-Shen Chen
Author_Institution :
Dept. of Chem. Eng. & Mater. Sci., Yuan-Ze Univ., Chungli, Taiwan
Volume :
50
Issue :
7
fYear :
2014
fDate :
Jul-14
Firstpage :
1
Lastpage :
4
Abstract :
In this paper, 4 nm-thick Co27Pt50Cu23 magnetic thin films were deposited on a (111)-textured Pt underlayer on a glass substrate at different substrate temperatures (Ts). Hard magnetic behaviors with outstanding perpendicular magnetic anisotropy (PMA) were obtained as Ts = RT - 400 °C. The result indicates the formation of superstructure L11 CoPtCu(111) phase with easy axis aligning perpendicularly to the plane. Above 400 °C, the CoPtCu film showed soft magnetic properties. Ordered L11 CoCuPt phase with PMA and high Ku value of about 5.7 × 105 J/m3 is obtained at Ts = RT. The result suggests that RT-deposited L11 CoPtCu thin film could be a potential candidate for magnetic sensor and spintronic device applications.
Keywords :
cobalt alloys; copper alloys; magnetic anisotropy; magnetic structure; magnetic thin films; permanent magnets; platinum alloys; soft magnetic materials; sputter deposition; (111)-textured Pt underlayer; Co27Pt50Cu23; SiO2; glass substrate; hard magnetic properties; magnetic thin films; magnetron sputtering; size 4 nm; soft magnetic properties; spintronic device; stabilized perpendicular magnetic anisotropy; superstructure formation; temperature 293 K to 298 K; Epitaxial growth; Glass; Magnetic properties; Perpendicular magnetic anisotropy; Soft magnetic materials; Substrates; (c) -axis orientation; microelectromechanical systems; tetragonal Pr2Fe14B phase; thickness dependence; thin films;
fLanguage :
English
Journal_Title :
Magnetics, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9464
Type :
jour
DOI :
10.1109/TMAG.2013.2297512
Filename :
6851286
Link To Document :
