Hydrogenation induced reversible modulation of perpendicular magnetic coercivity in Pd/Co/Pd films

Wen Chin Lin; Cheng Jui Tsai; Bo Yao Wang; Chao Hung Kao; Way Faung Pong

doi:10.1063/1.4812664

Hydrogenation induced reversible modulation of perpendicular magnetic coercivity in Pd/Co/Pd films

Wen Chin Lin, Cheng Jui Tsai, Bo Yao Wang, Chao Hung Kao, Way Faung Pong

Department of Physics

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

44 Citations (Scopus)

Abstract

In perpendicularly magnetized Pd/Co/Pd trilayers, the hydrogenation not only increased Kerr signal but also significantly enhanced the magnetic coercivity (H_C) by 17%. The reversibility was demonstrated by cyclic H₂ exposure. The time constants of hydrogen absorption and desorption effect on H_C range from tens to hundreds seconds, depending on the H₂ gas pressure. The magneto-optical Kerr signal and magnetic coercivity was simultaneously recorded during H₂ absorption and desorption. These multifarious signals respond differently and provide a detailed understanding of hydrogenation effect on the functional Pd/Co/Pd trilayers.

Original language	English
Article number	252404
Journal	Applied Physics Letters
Volume	102
Issue number	25
DOIs	https://doi.org/10.1063/1.4812664
Publication status	Published - 2013 Jun 24

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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title = "Hydrogenation induced reversible modulation of perpendicular magnetic coercivity in Pd/Co/Pd films",

abstract = "In perpendicularly magnetized Pd/Co/Pd trilayers, the hydrogenation not only increased Kerr signal but also significantly enhanced the magnetic coercivity (HC) by 17%. The reversibility was demonstrated by cyclic H2 exposure. The time constants of hydrogen absorption and desorption effect on HC range from tens to hundreds seconds, depending on the H2 gas pressure. The magneto-optical Kerr signal and magnetic coercivity was simultaneously recorded during H2 absorption and desorption. These multifarious signals respond differently and provide a detailed understanding of hydrogenation effect on the functional Pd/Co/Pd trilayers.",

author = "Lin, {Wen Chin} and Tsai, {Cheng Jui} and Wang, {Bo Yao} and Kao, {Chao Hung} and Pong, {Way Faung}",

note = "Funding Information: This work was supported by the National Science Council of Taiwan under Grant Nos. NSC 99-2112-M-003-009-MY3. ",

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T1 - Hydrogenation induced reversible modulation of perpendicular magnetic coercivity in Pd/Co/Pd films

AU - Lin, Wen Chin

AU - Tsai, Cheng Jui

AU - Wang, Bo Yao

AU - Kao, Chao Hung

AU - Pong, Way Faung

N1 - Funding Information: This work was supported by the National Science Council of Taiwan under Grant Nos. NSC 99-2112-M-003-009-MY3.

PY - 2013/6/24

Y1 - 2013/6/24

N2 - In perpendicularly magnetized Pd/Co/Pd trilayers, the hydrogenation not only increased Kerr signal but also significantly enhanced the magnetic coercivity (HC) by 17%. The reversibility was demonstrated by cyclic H2 exposure. The time constants of hydrogen absorption and desorption effect on HC range from tens to hundreds seconds, depending on the H2 gas pressure. The magneto-optical Kerr signal and magnetic coercivity was simultaneously recorded during H2 absorption and desorption. These multifarious signals respond differently and provide a detailed understanding of hydrogenation effect on the functional Pd/Co/Pd trilayers.

AB - In perpendicularly magnetized Pd/Co/Pd trilayers, the hydrogenation not only increased Kerr signal but also significantly enhanced the magnetic coercivity (HC) by 17%. The reversibility was demonstrated by cyclic H2 exposure. The time constants of hydrogen absorption and desorption effect on HC range from tens to hundreds seconds, depending on the H2 gas pressure. The magneto-optical Kerr signal and magnetic coercivity was simultaneously recorded during H2 absorption and desorption. These multifarious signals respond differently and provide a detailed understanding of hydrogenation effect on the functional Pd/Co/Pd trilayers.

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Hydrogenation induced reversible modulation of perpendicular magnetic coercivity in Pd/Co/Pd films

Abstract

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