Thermal stability of perpendicular exchange bias in [Pd/ferromagnet] N/FeMn films

H. W. Joo; J. Heo; H. C. Choi; M. S. Kim; S. D. Choi; C. Y. You; K. A. Lee; S. S. Lee; D. G. Hwang

doi:10.1109/NMDC.2006.4388779

Thermal stability of perpendicular exchange bias in [Pd/ferromagnet] _N/FeMn films

H. W. Joo, J. Heo, H. C. Choi, M. S. Kim, S. D. Choi, C. Y. You, K. A. Lee, S. S. Lee, D. G. Hwang

Department of Physics and Chemistry

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

The dependencies of the annealing temperature and the stack number N on perpendicular exchange-biasing(H_ex) and coercivity(H_c) in [Pd/Co]_N and [Pd/Co (or CoFe)]_N/FeMn multilayers were investigated. The surface anisotropy was varied as a function of N with constant bulk anisotropy. It was found that Ha does not depend on the surface anisotropy, while H_c shows a strong dependence. Therefore, it is possible to tailor wide ranges of the H_c (300 - 600 Oe) without varying H_ex(250 - 300 Oe) through the single control parameter stack number N. After annealing the H_c shows peak value at 350°C in [Pd/Co] multilayers without FeMn, but the peak temperature is down to 250°C for the exchange biased [Pd/F]_N/FeMn samples.

Original language	English
Title of host publication	2006 IEEE Nanotechnology Materials and Devices Conference, NMDC
Pages	386-387
Number of pages	2
DOIs	https://doi.org/10.1109/NMDC.2006.4388779
State	Published - 2006
Event	2006 IEEE Nanotechnology Materials and Devices Conference, NMDC - Gyeongju, Korea, Republic of Duration: 22 Oct 2006 → 25 Oct 2006

Publication series

Name	2006 IEEE Nanotechnology Materials and Devices Conference, NMDC
Volume	1

Conference

Conference	2006 IEEE Nanotechnology Materials and Devices Conference, NMDC
Country/Territory	Korea, Republic of
City	Gyeongju
Period	22/10/06 → 25/10/06

Keywords

Coercivity
Exchange bias
Pd/Co multilayer
Perpendicular magnetic anisotropy
Temperature dependence

Access to Document

10.1109/NMDC.2006.4388779

Cite this

Joo, H. W., Heo, J., Choi, H. C., Kim, M. S., Choi, S. D., You, C. Y., Lee, K. A., Lee, S. S., & Hwang, D. G. (2006). Thermal stability of perpendicular exchange bias in [Pd/ferromagnet] _N/FeMn films. In 2006 IEEE Nanotechnology Materials and Devices Conference, NMDC (pp. 386-387). Article 4388779 (2006 IEEE Nanotechnology Materials and Devices Conference, NMDC; Vol. 1). https://doi.org/10.1109/NMDC.2006.4388779

@inproceedings{610398abe60b44f2aace1a58a6c5d986,

title = "Thermal stability of perpendicular exchange bias in [Pd/ferromagnet] N/FeMn films",

abstract = "The dependencies of the annealing temperature and the stack number N on perpendicular exchange-biasing(Hex) and coercivity(Hc) in [Pd/Co]N and [Pd/Co (or CoFe)]N/FeMn multilayers were investigated. The surface anisotropy was varied as a function of N with constant bulk anisotropy. It was found that Ha does not depend on the surface anisotropy, while Hc shows a strong dependence. Therefore, it is possible to tailor wide ranges of the Hc (300 - 600 Oe) without varying Hex(250 - 300 Oe) through the single control parameter stack number N. After annealing the Hc shows peak value at 350°C in [Pd/Co] multilayers without FeMn, but the peak temperature is down to 250°C for the exchange biased [Pd/F]N/FeMn samples.",

keywords = "Coercivity, Exchange bias, Pd/Co multilayer, Perpendicular magnetic anisotropy, Temperature dependence",

author = "Joo, {H. W.} and J. Heo and Choi, {H. C.} and Kim, {M. S.} and Choi, {S. D.} and You, {C. Y.} and Lee, {K. A.} and Lee, {S. S.} and Hwang, {D. G.}",

year = "2006",

doi = "10.1109/NMDC.2006.4388779",

language = "English",

isbn = "1424405408",

series = "2006 IEEE Nanotechnology Materials and Devices Conference, NMDC",

pages = "386--387",

booktitle = "2006 IEEE Nanotechnology Materials and Devices Conference, NMDC",

note = "2006 IEEE Nanotechnology Materials and Devices Conference, NMDC ; Conference date: 22-10-2006 Through 25-10-2006",

}

Joo, HW, Heo, J, Choi, HC, Kim, MS, Choi, SD, You, CY, Lee, KA, Lee, SS & Hwang, DG 2006, Thermal stability of perpendicular exchange bias in [Pd/ferromagnet] _N/FeMn films. in 2006 IEEE Nanotechnology Materials and Devices Conference, NMDC., 4388779, 2006 IEEE Nanotechnology Materials and Devices Conference, NMDC, vol. 1, pp. 386-387, 2006 IEEE Nanotechnology Materials and Devices Conference, NMDC, Gyeongju, Korea, Republic of, 22/10/06. https://doi.org/10.1109/NMDC.2006.4388779

Thermal stability of perpendicular exchange bias in [Pd/ferromagnet] _N/FeMn films. / Joo, H. W.; Heo, J.; Choi, H. C. et al.
2006 IEEE Nanotechnology Materials and Devices Conference, NMDC. 2006. p. 386-387 4388779 (2006 IEEE Nanotechnology Materials and Devices Conference, NMDC; Vol. 1).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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T1 - Thermal stability of perpendicular exchange bias in [Pd/ferromagnet] N/FeMn films

AU - Joo, H. W.

AU - Heo, J.

AU - Choi, H. C.

AU - Kim, M. S.

AU - Choi, S. D.

AU - You, C. Y.

AU - Lee, K. A.

AU - Lee, S. S.

AU - Hwang, D. G.

PY - 2006

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N2 - The dependencies of the annealing temperature and the stack number N on perpendicular exchange-biasing(Hex) and coercivity(Hc) in [Pd/Co]N and [Pd/Co (or CoFe)]N/FeMn multilayers were investigated. The surface anisotropy was varied as a function of N with constant bulk anisotropy. It was found that Ha does not depend on the surface anisotropy, while Hc shows a strong dependence. Therefore, it is possible to tailor wide ranges of the Hc (300 - 600 Oe) without varying Hex(250 - 300 Oe) through the single control parameter stack number N. After annealing the Hc shows peak value at 350°C in [Pd/Co] multilayers without FeMn, but the peak temperature is down to 250°C for the exchange biased [Pd/F]N/FeMn samples.

AB - The dependencies of the annealing temperature and the stack number N on perpendicular exchange-biasing(Hex) and coercivity(Hc) in [Pd/Co]N and [Pd/Co (or CoFe)]N/FeMn multilayers were investigated. The surface anisotropy was varied as a function of N with constant bulk anisotropy. It was found that Ha does not depend on the surface anisotropy, while Hc shows a strong dependence. Therefore, it is possible to tailor wide ranges of the Hc (300 - 600 Oe) without varying Hex(250 - 300 Oe) through the single control parameter stack number N. After annealing the Hc shows peak value at 350°C in [Pd/Co] multilayers without FeMn, but the peak temperature is down to 250°C for the exchange biased [Pd/F]N/FeMn samples.

KW - Coercivity

KW - Exchange bias

KW - Pd/Co multilayer

KW - Perpendicular magnetic anisotropy

KW - Temperature dependence

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