Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1612402 | Journal of Alloys and Compounds | 2014 | 5 Pages |
Abstract
Perpendicular magnetic anisotropy (PMA) of sputter-prepared Pr-Fe-B films on the glass substrates were improved by inserting a Ta underlayer. Pr-Fe-B directly sputtered on glass substrate exhibits soft in-plane magnetic property due to the amorphous phase or poor crystallization. When Ta layer is introduced as an underlayer, strong PMA with attractive hard magnetic properties are obtained. Their magnetic properties highly depend on the thickness of Ta underlayer (t). Large out-of-plane coercivity (Hcâ¥Â > 800 kA/m) is attained for t in the range of 10-75 nm, where the Pr-Fe-B film sputtered on 50-nm-thick Ta underlayer shows stronger PMA due to promotion of the formation for the Pr2Fe14B phase with Ta underlayer. Therefore, it was demonstrated that inserting a Ta underlayer with suitable t (â¼50 nm) between magnetic layer and glass substrate promotes to obtain Pr-Fe-B film with excellent PMA.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Chuan-Fa Huang, An-Cheng Sun, H.W. Chang, Fe-Te Yuan, S.T. Chang, W.C. Chang,