FePdB layer for perpendicular magnetic tunnel junctions

Gyung Min Choi; Byoung Chul Min; Kyung Ho Shin

doi:10.1063/1.3517482

FePdB layer for perpendicular magnetic tunnel junctions

Gyung Min Choi
, Byoung Chul Min
, Kyung Ho Shin

Korea Institute of Science and Technology

Research output: Contribution to journal › Article › peer-review

21 Scopus citations

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 Fe40 Pd40 B20 layers on proper templates and by postannealing. An FePdB film on a thick Pt (001) underlayer has a PMA energy (K_u) of 4.9× 10⁶ erg/ cm³, and an FePdB layer sandwiched by two thin MgO (001) layers shows a K_u of 3.7 × 10⁶ erg/ cm³. A double barrier p-MTJ with an FePdB middle layer shows a tunnel magnetoresistance of 6.8%.

Original language	English
Article number	202503
Journal	Applied Physics Letters
Volume	97
Issue number	20
DOIs	https://doi.org/10.1063/1.3517482
State	Published - 15 Nov 2010
Externally published	Yes

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title = "FePdB layer for perpendicular magnetic tunnel junctions",

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 Fe40 Pd40 B20 layers on proper templates and by postannealing. An FePdB film on a thick Pt (001) underlayer has a PMA energy (Ku) of 4.9× 106 erg/ cm3, and an FePdB layer sandwiched by two thin MgO (001) layers shows a Ku of 3.7 × 106 erg/ cm3. A double barrier p-MTJ with an FePdB middle layer shows a tunnel magnetoresistance of 6.8\%.",

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AU - Choi, Gyung Min

AU - Min, Byoung Chul

AU - Shin, Kyung Ho

PY - 2010/11/15

Y1 - 2010/11/15

N2 - 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 Fe40 Pd40 B20 layers on proper templates and by postannealing. An FePdB film on a thick Pt (001) underlayer has a PMA energy (Ku) of 4.9× 106 erg/ cm3, and an FePdB layer sandwiched by two thin MgO (001) layers shows a Ku of 3.7 × 106 erg/ cm3. A double barrier p-MTJ with an FePdB middle layer shows a tunnel magnetoresistance of 6.8%.

AB - 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 Fe40 Pd40 B20 layers on proper templates and by postannealing. An FePdB film on a thick Pt (001) underlayer has a PMA energy (Ku) of 4.9× 106 erg/ cm3, and an FePdB layer sandwiched by two thin MgO (001) layers shows a Ku of 3.7 × 106 erg/ cm3. A double barrier p-MTJ with an FePdB middle layer shows a tunnel magnetoresistance of 6.8%.

UR - https://www.scopus.com/pages/publications/78649292870

U2 - 10.1063/1.3517482

DO - 10.1063/1.3517482

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SN - 0003-6951

VL - 97

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 20

M1 - 202503

ER -

FePdB layer for perpendicular magnetic tunnel junctions

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