발간논문

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Vol.38, No.8, 1093 ~ 1099, 2000
Title
Magnetic Properties of Ni-Fe/Mn-Ir Multilayers with Stacking Sequence for a Spin - Valve Head
윤성용Seong Yong Yoon,노재철Jae Chul Ro,전동민Dong Min Jeon,박준혁Joun Hyuk Park,김장현Jang Hyun Kim,서수정Su Jeong Suh
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.
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