Biaxial strain sensing using a Pd/Co-based perpendicular flexible spin valve

Abstract We fabricated a Pd/Co-based spin valve structure, which has in-plane (IP) free and out-of-plane (OOP) fixed layers, on a flexible substrate. By applying %-order biaxial tensile strain to the substrate, a spin reorientation transition from IP to OOP occurs in the free layer, resulting in a d...

Full description

Saved in:
Bibliographic Details
Published inApplied physics express Vol. 15; no. 3; pp. 33004 - 33006
Main Authors Matsumoto, Hiroki, Ota, Shinya, Koyama, Tomohiro, Chiba, Daichi
Format Journal Article
LanguageEnglish
Published IOP Publishing 01.03.2022
Subjects
magnetoelastic effect
pressure detector
spintronics device
Online AccessGet full text

Cover

More Information
Summary:Abstract We fabricated a Pd/Co-based spin valve structure, which has in-plane (IP) free and out-of-plane (OOP) fixed layers, on a flexible substrate. By applying %-order biaxial tensile strain to the substrate, a spin reorientation transition from IP to OOP occurs in the free layer, resulting in a drastic change in the shape of the magnetoresistance curve. This change is reversible with increasing and decreasing strain. We suggest that our system could be utilized as an in-plane “direction-independent” strain sensor and as a pressure detector.
Bibliography:APEX-105997.R1
ISSN:1882-0778
1882-0786
DOI:10.35848/1882-0786/ac5725