Stable canted magnetization in Co thin films on highly oriented pyrolytic graphite induced by template defects

Wen Chin Lin; Ya Yun Huang; Tsung Ying Ho; Chih Hsiung Wang

doi:10.1063/1.3657491

Stable canted magnetization in Co thin films on highly oriented pyrolytic graphite induced by template defects

Wen Chin Lin^*, Ya Yun Huang, Tsung Ying Ho, Chih Hsiung Wang

^*Corresponding author for this work

Department of Physics

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

10 Citations (Scopus)

Abstract

Co thin films were grown on planar highly oriented pyrolytic graphite (p-HOPG) and Ar⁺ sputtered HOPG (s-HOPG) for comparison. Measurement of Auger ratio Co/C suggested the more uniform nucleation for Co on s-HOPG. Co/p-HOPG exhibited only in-plane magnetization, whereas Co/s-HOPG revealed the coexistence of in-plane and perpendicular MOKE hysteresis loops, indicating stable canted magnetization. The canted magnetization of Co/s-HOPG, which persisted at least up to 50 ML, could be attributed to volume-contributed perpendicular anisotropy. These observations will be valuable for future applications in the combination of metallic magnetic materials and carbon-based templates.

Original language	English
Article number	172502
Journal	Applied Physics Letters
Volume	99
Issue number	17
DOIs	https://doi.org/10.1063/1.3657491
Publication status	Published - 2011 Oct 24

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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title = "Stable canted magnetization in Co thin films on highly oriented pyrolytic graphite induced by template defects",

abstract = "Co thin films were grown on planar highly oriented pyrolytic graphite (p-HOPG) and Ar+ sputtered HOPG (s-HOPG) for comparison. Measurement of Auger ratio Co/C suggested the more uniform nucleation for Co on s-HOPG. Co/p-HOPG exhibited only in-plane magnetization, whereas Co/s-HOPG revealed the coexistence of in-plane and perpendicular MOKE hysteresis loops, indicating stable canted magnetization. The canted magnetization of Co/s-HOPG, which persisted at least up to 50 ML, could be attributed to volume-contributed perpendicular anisotropy. These observations will be valuable for future applications in the combination of metallic magnetic materials and carbon-based templates.",

author = "Lin, {Wen Chin} and Huang, {Ya Yun} and Ho, {Tsung Ying} and Wang, {Chih Hsiung}",

note = "Funding Information: This work was supported by the National Science Council of Taiwan under grant nos. NSC 99-2112 -M-003-009-MY3 and NSC 99-2923 -M-003-001-MY2.",

year = "2011",

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doi = "10.1063/1.3657491",

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journal = "Applied Physics Letters",

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T1 - Stable canted magnetization in Co thin films on highly oriented pyrolytic graphite induced by template defects

AU - Lin, Wen Chin

AU - Huang, Ya Yun

AU - Ho, Tsung Ying

AU - Wang, Chih Hsiung

N1 - Funding Information: This work was supported by the National Science Council of Taiwan under grant nos. NSC 99-2112 -M-003-009-MY3 and NSC 99-2923 -M-003-001-MY2.

PY - 2011/10/24

Y1 - 2011/10/24

N2 - Co thin films were grown on planar highly oriented pyrolytic graphite (p-HOPG) and Ar+ sputtered HOPG (s-HOPG) for comparison. Measurement of Auger ratio Co/C suggested the more uniform nucleation for Co on s-HOPG. Co/p-HOPG exhibited only in-plane magnetization, whereas Co/s-HOPG revealed the coexistence of in-plane and perpendicular MOKE hysteresis loops, indicating stable canted magnetization. The canted magnetization of Co/s-HOPG, which persisted at least up to 50 ML, could be attributed to volume-contributed perpendicular anisotropy. These observations will be valuable for future applications in the combination of metallic magnetic materials and carbon-based templates.

AB - Co thin films were grown on planar highly oriented pyrolytic graphite (p-HOPG) and Ar+ sputtered HOPG (s-HOPG) for comparison. Measurement of Auger ratio Co/C suggested the more uniform nucleation for Co on s-HOPG. Co/p-HOPG exhibited only in-plane magnetization, whereas Co/s-HOPG revealed the coexistence of in-plane and perpendicular MOKE hysteresis loops, indicating stable canted magnetization. The canted magnetization of Co/s-HOPG, which persisted at least up to 50 ML, could be attributed to volume-contributed perpendicular anisotropy. These observations will be valuable for future applications in the combination of metallic magnetic materials and carbon-based templates.

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Stable canted magnetization in Co thin films on highly oriented pyrolytic graphite induced by template defects

Abstract

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