Title :
Ultra-Thin Nd

Fe

B Films With Perpendicular Magnetic Anisotropy
Author :
Morisako, Akimitsu ; Yamasawa, Koji ; Liu, Xiaoxi
Author_Institution :
Fac. of Eng., Shinshu Univ., Nagano
Abstract :
Nd2Fe14B films with thickness as thin as 5 nm have been successfully prepared with perpendicular magnetic anisotropy (PMA). The coercive mechanism and the effects of Ta underlayer for Nd-Fe-B layer have been studied. A 5 nm thick film with perpendicular coercivity of 8.4 kOe and in-plane coercivity 0.3 kOe have been prepared onto Ta underlayer with thickness of 20 nm. The results show that Nd2Fe14B thin films are prominent candidates for perpendicular recording media
Keywords :
coercive force; iron alloys; magnetic thin films; neodymium alloys; perpendicular magnetic anisotropy; perpendicular magnetic recording; 5 nm; Nd2Fe14B; magnetic recording media; magnetic thin films; perpendicular coercivity; perpendicular magnetic anisotropy; Coercive force; Glass; Iron; Magnetic films; Magnetic materials; Neodymium; Perpendicular magnetic anisotropy; Perpendicular magnetic recording; Substrates; Transistors; Magnetic recording media; Nd; perpendicular magnetic anisotropy;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2006.879958