Modulation of spin-orbit torque efficiency by thickness control of heavy metal layers in Co/Pt multilayers

• Main Authors: Sethi, Pankaj, Krishnia, Sachin, Li, Sihua, Lew, Wen Siang
• Other Authors: School of Physical and Mathematical Sciences
• Format: Article
• Language: English
• Published: 2017
• Subjects: Spin Orbit Torque; Spin Hall Angle
• Online Access: https://hdl.handle.net/10356/85991; http://hdl.handle.net/10220/43902
• Institution: Nanyang Technological University

We investigate and quantify spin-orbit torque (SOT) strength by current induced effective in-plane magnetic fields and spin Hall angle (SHA) using AC harmonic Hall voltage measurements techniques on Ta/Pt/Co/Pt/Co/Ta thin film structures. The proposed Co/Pt thin film double stack gives property enha...