Hydrogen absorption induced reversible effect on magneto-optical property of Pd/Fe, Pd/Co and Pd/Ni bilayers

Wen Chin Lin; Chiao Sung Chi; Tsung Ying Ho; Cheng Jui Tsai

doi:10.1016/j.tsf.2013.01.022

Hydrogen absorption induced reversible effect on magneto-optical property of Pd/Fe, Pd/Co and Pd/Ni bilayers

Wen Chin Lin^*, Chiao Sung Chi, Tsung Ying Ho, Cheng Jui Tsai

^*Corresponding author for this work

Department of Physics

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

16 Citations (Scopus)

Abstract

We report on the reversible change of the magneto-optical Kerr effect (MOKE) in Pd covered magnetic thin films by controlling H₂ absorption. After H₂ exposure, the extinction angle of MOKE was shifted and correspondingly the Kerr intensity was significantly increased. When properly choosing the analyzer angle, we obtained large enhancement of 40%, 35% and 50-70% for Pd/Fe, Pd/Co and Pd/Ni bilayers, respectively. The time-dependence of this H₂ absorption effect on MOKE was investigated. The reversibility of MOKE enhancement was demonstrated in Pd/Ni bilayer by multiple cycles (at least 4 times) of H₂ absorption and desorption. These observations reveal the universal responses when combining the hydrogenated Pd layer with a magnetic thin film, and can be applied in various magnetic materials.

Original language	English
Pages (from-to)	487-490
Number of pages	4
Journal	Thin Solid Films
Volume	531
DOIs	https://doi.org/10.1016/j.tsf.2013.01.022
Publication status	Published - 2013

Keywords

Hydrogen absorption
Magnetism
Magneto-optic

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Surfaces and Interfaces
Surfaces, Coatings and Films
Metals and Alloys
Materials Chemistry

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title = "Hydrogen absorption induced reversible effect on magneto-optical property of Pd/Fe, Pd/Co and Pd/Ni bilayers",

abstract = "We report on the reversible change of the magneto-optical Kerr effect (MOKE) in Pd covered magnetic thin films by controlling H2 absorption. After H2 exposure, the extinction angle of MOKE was shifted and correspondingly the Kerr intensity was significantly increased. When properly choosing the analyzer angle, we obtained large enhancement of 40%, 35% and 50-70% for Pd/Fe, Pd/Co and Pd/Ni bilayers, respectively. The time-dependence of this H2 absorption effect on MOKE was investigated. The reversibility of MOKE enhancement was demonstrated in Pd/Ni bilayer by multiple cycles (at least 4 times) of H2 absorption and desorption. These observations reveal the universal responses when combining the hydrogenated Pd layer with a magnetic thin film, and can be applied in various magnetic materials.",

keywords = "Hydrogen absorption, Magnetism, Magneto-optic",

author = "Lin, {Wen Chin} and Chi, {Chiao Sung} and Ho, {Tsung Ying} and Tsai, {Cheng Jui}",

note = "Funding Information: This work was supported by the National Science Council of Taiwan under grant no. NSC 99-2112-M-003-009-MY3 .",

year = "2013",

doi = "10.1016/j.tsf.2013.01.022",

language = "English",

volume = "531",

pages = "487--490",

journal = "Thin Solid Films",

issn = "0040-6090",

publisher = "Elsevier",

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TY - JOUR

T1 - Hydrogen absorption induced reversible effect on magneto-optical property of Pd/Fe, Pd/Co and Pd/Ni bilayers

AU - Lin, Wen Chin

AU - Chi, Chiao Sung

AU - Ho, Tsung Ying

AU - Tsai, Cheng Jui

N1 - Funding Information: This work was supported by the National Science Council of Taiwan under grant no. NSC 99-2112-M-003-009-MY3 .

PY - 2013

Y1 - 2013

N2 - We report on the reversible change of the magneto-optical Kerr effect (MOKE) in Pd covered magnetic thin films by controlling H2 absorption. After H2 exposure, the extinction angle of MOKE was shifted and correspondingly the Kerr intensity was significantly increased. When properly choosing the analyzer angle, we obtained large enhancement of 40%, 35% and 50-70% for Pd/Fe, Pd/Co and Pd/Ni bilayers, respectively. The time-dependence of this H2 absorption effect on MOKE was investigated. The reversibility of MOKE enhancement was demonstrated in Pd/Ni bilayer by multiple cycles (at least 4 times) of H2 absorption and desorption. These observations reveal the universal responses when combining the hydrogenated Pd layer with a magnetic thin film, and can be applied in various magnetic materials.

AB - We report on the reversible change of the magneto-optical Kerr effect (MOKE) in Pd covered magnetic thin films by controlling H2 absorption. After H2 exposure, the extinction angle of MOKE was shifted and correspondingly the Kerr intensity was significantly increased. When properly choosing the analyzer angle, we obtained large enhancement of 40%, 35% and 50-70% for Pd/Fe, Pd/Co and Pd/Ni bilayers, respectively. The time-dependence of this H2 absorption effect on MOKE was investigated. The reversibility of MOKE enhancement was demonstrated in Pd/Ni bilayer by multiple cycles (at least 4 times) of H2 absorption and desorption. These observations reveal the universal responses when combining the hydrogenated Pd layer with a magnetic thin film, and can be applied in various magnetic materials.

KW - Hydrogen absorption

KW - Magnetism

KW - Magneto-optic

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U2 - 10.1016/j.tsf.2013.01.022

DO - 10.1016/j.tsf.2013.01.022

M3 - Article

AN - SCOPUS:84875417143

SN - 0040-6090

VL - 531

SP - 487

EP - 490

JO - Thin Solid Films

JF - Thin Solid Films

ER -

Hydrogen absorption induced reversible effect on magneto-optical property of Pd/Fe, Pd/Co and Pd/Ni bilayers

Abstract

Keywords

ASJC Scopus subject areas

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