| Title |
Magnetic Properties of Ni-Fe/Mn-Ir Multilayers with Stacking Sequence for a Spin - Valve Head |
| Authors |
윤성용(Seong Yong Yoon),노재철(Jae Chul Ro),전동민(Dong Min Jeon),박준혁(Joun Hyuk Park),김장현(Jang Hyun Kim),서수정(Su Jeong Suh) |
| ISSN |
1738-8228(ISSN), 2288-8241(eISSN) |
| Abstract |
The purpose of this research is to find out the dominant factor determining exchange biased field and characteristics of Ni-Fe/Mn-Ir/buffer/Si bottom structure. We found out that the H_(ex) and the H_c of Ni-Fe/Mn-Ir multilayers depended on the grain size of Mn-Ir layer and the grain-to-grain epitaxy relationship at the interface between Mn-Ir and Ni-Fe layers. The blocking temperature, at which the exchange biased field disappears, of top structure was about 220℃ and that of bottom structure was about 180℃. The grain size of Mn-Ir layer in bottom structure is smaller than that in top structure. The bottom structure has more magnetic dead layer and less alignment of spin of the Mn-Ir layer than top structure. |