Magnetic properties of Co film in Pt/Co/Cr2O3/Pt structure

T. V.A. Nguyen; Y. Shiratsuchi; H. Sato; S. Ikeda; T. Endoh; Y. Endo

doi:10.1063/1.5130439

Magnetic properties of Co film in Pt/Co/Cr₂O₃/Pt structure

T. V.A. Nguyen, Y. Shiratsuchi, H. Sato, S. Ikeda, T. Endoh, Y. Endo

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

5 Citations (Scopus)

Abstract

Magnetic properties of Co film in Pt/Co/α-Cr₂O₃/Pt/α-Al₂O₃ structure were investigated. Co layer thickness t_Co dependence of perpendicular magnetic anisotropy energy density K reveals that the bulk magnetic anisotropy plays an important role in the system in addition to the interfacial anisotropy. Damping constant α monotonically increases with the decrease of t_Co but not proportionally to 1/t_Co. Both K and α increase with the increase of Pt layer thickness t_Pt from 3 nm to 5 nm and keeps almost constant in the t_Pt range between 5 nm to 20 nm. These results are of importance to understand the magnetization switching behavior driven by the magneto-electric (ME) effect as well as to design the spintronics device using the ME effect.

Original language	English
Article number	015152
Journal	AIP Advances
Volume	10
Issue number	1
DOIs	https://doi.org/10.1063/1.5130439
Publication status	Published - 2020 Jan 1

ASJC Scopus subject areas

Physics and Astronomy(all)

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title = "Magnetic properties of Co film in Pt/Co/Cr2O3/Pt structure",

abstract = "Magnetic properties of Co film in Pt/Co/α-Cr2O3/Pt/α-Al2O3 structure were investigated. Co layer thickness tCo dependence of perpendicular magnetic anisotropy energy density K reveals that the bulk magnetic anisotropy plays an important role in the system in addition to the interfacial anisotropy. Damping constant α monotonically increases with the decrease of tCo but not proportionally to 1/tCo. Both K and α increase with the increase of Pt layer thickness tPt from 3 nm to 5 nm and keeps almost constant in the tPt range between 5 nm to 20 nm. These results are of importance to understand the magnetization switching behavior driven by the magneto-electric (ME) effect as well as to design the spintronics device using the ME effect.",

author = "Nguyen, {T. V.A.} and Y. Shiratsuchi and H. Sato and S. Ikeda and T. Endoh and Y. Endo",

note = "Funding Information: The authors also acknowledge the Core Research Cluster program of Tohoku University for the financial support. This work was partly supported by JSPS KAKENHI Grant Nos. 17K18991, 16H03832, 16H02389, 19H00825, 19K23583, CSIS at Tohoku University, CSRN at Tohoku University, and the Photonics Advanced Research Center (PARC) at Osaka University. Publisher Copyright: {\textcopyright} 2020 Author(s).",

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doi = "10.1063/1.5130439",

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T1 - Magnetic properties of Co film in Pt/Co/Cr2O3/Pt structure

AU - Nguyen, T. V.A.

AU - Shiratsuchi, Y.

AU - Sato, H.

AU - Ikeda, S.

AU - Endoh, T.

AU - Endo, Y.

N1 - Funding Information: The authors also acknowledge the Core Research Cluster program of Tohoku University for the financial support. This work was partly supported by JSPS KAKENHI Grant Nos. 17K18991, 16H03832, 16H02389, 19H00825, 19K23583, CSIS at Tohoku University, CSRN at Tohoku University, and the Photonics Advanced Research Center (PARC) at Osaka University. Publisher Copyright: © 2020 Author(s).

PY - 2020/1/1

Y1 - 2020/1/1

N2 - Magnetic properties of Co film in Pt/Co/α-Cr2O3/Pt/α-Al2O3 structure were investigated. Co layer thickness tCo dependence of perpendicular magnetic anisotropy energy density K reveals that the bulk magnetic anisotropy plays an important role in the system in addition to the interfacial anisotropy. Damping constant α monotonically increases with the decrease of tCo but not proportionally to 1/tCo. Both K and α increase with the increase of Pt layer thickness tPt from 3 nm to 5 nm and keeps almost constant in the tPt range between 5 nm to 20 nm. These results are of importance to understand the magnetization switching behavior driven by the magneto-electric (ME) effect as well as to design the spintronics device using the ME effect.

AB - Magnetic properties of Co film in Pt/Co/α-Cr2O3/Pt/α-Al2O3 structure were investigated. Co layer thickness tCo dependence of perpendicular magnetic anisotropy energy density K reveals that the bulk magnetic anisotropy plays an important role in the system in addition to the interfacial anisotropy. Damping constant α monotonically increases with the decrease of tCo but not proportionally to 1/tCo. Both K and α increase with the increase of Pt layer thickness tPt from 3 nm to 5 nm and keeps almost constant in the tPt range between 5 nm to 20 nm. These results are of importance to understand the magnetization switching behavior driven by the magneto-electric (ME) effect as well as to design the spintronics device using the ME effect.

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Magnetic properties of Co film in Pt/Co/Cr₂O₃/Pt structure

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