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 journalArticlepeer-review

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.

Original languageEnglish
Article number015152
JournalAIP Advances
Volume10
Issue number1
DOIs
Publication statusPublished - 2020 Jan 1

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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