Direct spin accumulation quantification in ferromagnetic heterostructures using DC bias harmonic Hall measurement

• Main Authors: Poh, Han Yin, Ang, Calvin Ching Ian, Gan, Weiliang, Lim, Gerard Joseph, Lew, Wen Siang
• Other Authors: School of Physical and Mathematical Sciences
• Format: Article
• Language: English
• Published: 2022
• Subjects: Science::Physics; Spin-Orbit Torque; Ferromagnetic Materials
• Online Access: https://hdl.handle.net/10356/163173
• Institution: Nanyang Technological University

A technique for spin accumulation quantification, specifically in the ferromagnetic layer of spin-orbit torque inducing heterostructures has been elusive. Here, we demonstrate an easy-to-implement technique to achieve this quantification by applying an additional DC bias during the harmonic Hall mea...