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Ultrahigh microwave frequency resonance of Y2Co17 thin film with planar anisotropy.

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Title: Ultrahigh microwave frequency resonance of Y2Co17 thin film with planar anisotropy.
Authors: Pan, Lining1,2 (AUTHOR), Gao, Yu1,2 (AUTHOR), Zhuang, Xueheng1,2 (AUTHOR), Tan, Guoguo1,3 (AUTHOR), Man, Qikui1,2 (AUTHOR) manqk@nimte.ac.cn
Source: Journal of Magnetism & Magnetic Materials. Jul2023, Vol. 577, pN.PAG-N.PAG. 1p.
Subjects: Thin films, Anisotropy, Resonance, Intermetallic compounds, Carbon dioxide, Magnetron sputtering, Magnetic anisotropy
Abstract: • The Y 2 Co 17 intermetallic compounds thin film with planar anisotropy is prepared and characterized in detail. • The Y 2 Co 17 film has saturation magnetization of 13.5 kGs and magneto-crystalline anisotropy constant of −1.88 × 106 erg/cm3. • The ultrahigh natural resonance frequency of 4.1 GHz in Y 2 Co 17 thin-film is obtained. Y 2 Co 17 thin films grown along the c axis with planar anisotropy were fabricated by magnetron sputtering and annealed by vacuum heat treatment with rapid water-cooling technologies. The results demonstrate that the annealing temperature had a significant impact on structures and morphologies of the films. The phase structure transformed from rich fcc-Co phase to Y 2 Co 17 intermetallic compounds with the increasing annealing temperature. The Y 2 Co 17 thin film annealed at 600 °C has a saturation magnetization of around 13.5 kGs and a negative magneto-crystalline anisotropy constant of −1.88 × 106 erg/cm3, respectively. The high-frequency performance of the film show that, in the absence of an induced in-plane anisotropy field, the zero-field natural resonance frequency exceeds 4 GHz. [ABSTRACT FROM AUTHOR]
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Database: Engineering Source
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Abstract:• The Y 2 Co 17 intermetallic compounds thin film with planar anisotropy is prepared and characterized in detail. • The Y 2 Co 17 film has saturation magnetization of 13.5 kGs and magneto-crystalline anisotropy constant of −1.88 × 106 erg/cm3. • The ultrahigh natural resonance frequency of 4.1 GHz in Y 2 Co 17 thin-film is obtained. Y 2 Co 17 thin films grown along the c axis with planar anisotropy were fabricated by magnetron sputtering and annealed by vacuum heat treatment with rapid water-cooling technologies. The results demonstrate that the annealing temperature had a significant impact on structures and morphologies of the films. The phase structure transformed from rich fcc-Co phase to Y 2 Co 17 intermetallic compounds with the increasing annealing temperature. The Y 2 Co 17 thin film annealed at 600 °C has a saturation magnetization of around 13.5 kGs and a negative magneto-crystalline anisotropy constant of −1.88 × 106 erg/cm3, respectively. The high-frequency performance of the film show that, in the absence of an induced in-plane anisotropy field, the zero-field natural resonance frequency exceeds 4 GHz. [ABSTRACT FROM AUTHOR]
ISSN:03048853
DOI:10.1016/j.jmmm.2023.170801