Modulation of perpendicular magnetic anisotropy in CoFeB/MgO structure by an application of biaxial tensile strain

The application of %-order biaxial tensile strain can control the perpendicular magnetic anisotropy (PMA) in a CoFeB/MgO system deposited on a flexible substrate. A magnetic anisotropy switch from perpendicular to in-plane was observed when increasing the strain. The reversibility of the anisotropy...

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Bibliographic Details
Published in:Applied physics express 2023-06, Vol.16 (6), p.63001
Main Authors: Gokita, Takeaki, Nagira, Ryota, Torii, Taiga, Koyama, Tomohiro, Chiba, Daichi
Format: Article
Language:English
Subjects:
CoFeB/MgO system
flexible spintronics
magnetoelastic effect
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Summary:The application of %-order biaxial tensile strain can control the perpendicular magnetic anisotropy (PMA) in a CoFeB/MgO system deposited on a flexible substrate. A magnetic anisotropy switch from perpendicular to in-plane was observed when increasing the strain. The reversibility of the anisotropy change has been confirmed. The mechanism of the anisotropy change was discussed based on the strain-induced modulation of the bulk and CoFeB/MgO interfacial anisotropies, which is the origin of the PMA in the system.
ISSN:1882-0778
1882-0786
DOI:10.35848/1882-0786/acdb2b