FePdB layer for perpendicular magnetic tunnel junctions

Title
FePdB layer for perpendicular magnetic tunnel junctions
Authors
최경민민병철신경호
Keywords
magnetic tunnel junction; perpendicular magnetic anisotropy; tunnel magnetoresistance
Issue Date
2010-11
Publisher
Applied physics letters
Citation
VOL 97, NO 20, 202503-1-202503-3
Abstract
We have investigated the feasibility of using FePdB alloy layers for perpendicular magnetic tunnel junctions (p-MTJs). The perpendicular magnetic anisotropy (PMA) of FePdB films is obtained by depositing amorphous Fe40Pd40B20 layers on proper templates and by postannealing. An FePdB film on a thick Pt (001) underlayer has a PMA energy (Ku) of 4.9 X 106 erg/cm3, and an FePdB layer sandwiched by two thin MgO (001) layers shows a Ku of 3.7 X 106 erg/cm3. A double barrier p-MTJ with an FePdB middle layer shows a tunnel magnetoresistance of 6.8%.
URI
http://pubs.kist.re.kr/handle/201004/38675
ISSN
0003-6951
Appears in Collections:
KIST Publication > Article
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