Hydrogen adsorption promoted perpendicular magnetic anisotropy in nano-structured Fe coverage on Pd/W{112} faceting surface

Chieh Chen Chiu; Wen Chin Lin; Yu Chen Yeh; Ker Jar Song

doi:10.1063/1.4811492

Hydrogen adsorption promoted perpendicular magnetic anisotropy in nano-structured Fe coverage on Pd/W{112} faceting surface

Chieh Chen Chiu, Wen Chin Lin^*, Yu Chen Yeh, Ker Jar Song

^*Corresponding author for this work

Department of Physics

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

6 Citations (Scopus)

Abstract

Nano-structured Fe coverage was deposited on Pd/W{112} faceting surface for the investigation of magnetic properties. The morphology consisting of 3-sided nano-pyramids in Fe coverage remained stable at least up to 400 K. The Fe magnetization switched from perpendicular to in-plane direction at 2 physical monolayer (PML). Hydrogen adsorption significantly enhanced the perpendicular coercivity by 6-7 times, and shifted the switching critical thickness to 2.8 PML. The hydrogen thermal desorption and re-adsorption seriously influenced the magnetic behaviors, depending on the hydrogen partial pressure.

Original language	English
Article number	242403
Journal	Applied Physics Letters
Volume	102
Issue number	24
DOIs	https://doi.org/10.1063/1.4811492
Publication status	Published - 2013 Jun 17

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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title = "Hydrogen adsorption promoted perpendicular magnetic anisotropy in nano-structured Fe coverage on Pd/W{112} faceting surface",

abstract = "Nano-structured Fe coverage was deposited on Pd/W{112} faceting surface for the investigation of magnetic properties. The morphology consisting of 3-sided nano-pyramids in Fe coverage remained stable at least up to 400 K. The Fe magnetization switched from perpendicular to in-plane direction at 2 physical monolayer (PML). Hydrogen adsorption significantly enhanced the perpendicular coercivity by 6-7 times, and shifted the switching critical thickness to 2.8 PML. The hydrogen thermal desorption and re-adsorption seriously influenced the magnetic behaviors, depending on the hydrogen partial pressure.",

author = "Chiu, {Chieh Chen} and Lin, {Wen Chin} and Yeh, {Yu Chen} and Song, {Ker Jar}",

note = "Funding Information: The authors acknowledge Professor Minn-Tsong Lin for valuable discussion. This work was supported by the National Science Council of Taiwan under Grant Nos. NSC 99-2112-M-003-009-MY3 and NSC 99-2112-M-001-035.",

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doi = "10.1063/1.4811492",

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T1 - Hydrogen adsorption promoted perpendicular magnetic anisotropy in nano-structured Fe coverage on Pd/W{112} faceting surface

AU - Chiu, Chieh Chen

AU - Lin, Wen Chin

AU - Yeh, Yu Chen

AU - Song, Ker Jar

N1 - Funding Information: The authors acknowledge Professor Minn-Tsong Lin for valuable discussion. This work was supported by the National Science Council of Taiwan under Grant Nos. NSC 99-2112-M-003-009-MY3 and NSC 99-2112-M-001-035.

PY - 2013/6/17

Y1 - 2013/6/17

N2 - Nano-structured Fe coverage was deposited on Pd/W{112} faceting surface for the investigation of magnetic properties. The morphology consisting of 3-sided nano-pyramids in Fe coverage remained stable at least up to 400 K. The Fe magnetization switched from perpendicular to in-plane direction at 2 physical monolayer (PML). Hydrogen adsorption significantly enhanced the perpendicular coercivity by 6-7 times, and shifted the switching critical thickness to 2.8 PML. The hydrogen thermal desorption and re-adsorption seriously influenced the magnetic behaviors, depending on the hydrogen partial pressure.

AB - Nano-structured Fe coverage was deposited on Pd/W{112} faceting surface for the investigation of magnetic properties. The morphology consisting of 3-sided nano-pyramids in Fe coverage remained stable at least up to 400 K. The Fe magnetization switched from perpendicular to in-plane direction at 2 physical monolayer (PML). Hydrogen adsorption significantly enhanced the perpendicular coercivity by 6-7 times, and shifted the switching critical thickness to 2.8 PML. The hydrogen thermal desorption and re-adsorption seriously influenced the magnetic behaviors, depending on the hydrogen partial pressure.

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Hydrogen adsorption promoted perpendicular magnetic anisotropy in nano-structured Fe coverage on Pd/W{112} faceting surface

Abstract

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