2012/08/06 by Soo-Man Seo, Kyung-Jin Lee
Materials Science · Physics and Astronomy · #Current (fluid) #Electric current #Magnetic Properties and Applications #Magnetic properties of thin films #Magnetization #Multiferroics and related materials #Perpendicular #Perpendicular recording #Plane (geometry) #Precession #Switching time #cond-mat.mes-hall #cond-mat.mtrl-sci
paper · pdf · doi:10.1063/1.4742917
published as Appl. Phys. Lett. 101, 062408 (2012) · 18 pages, 4 figures
openalex publication_date 2012/08/06 · arxiv created 2012/08/15 · arxiv updated 2012/08/16 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We investigate current-induced magnetization switching for a multilayer structure that allows a reduced switching current while maintaining high thermal stability of the magnetization. The structure consists of a perpendicular polarizer, a perpendicular free-layer, and an additional free-layer having in-plane magnetization. When the current runs perpendicular to the structure, the in-plane free-layer undergoes a precession and supplies an internal rf field to the perpendicular free-layer, resulting in a reduced switching current for one current polarity. For the other polarity, the in-plane free-layer almost saturates perpendicular to the plane and acts as another perpendicular polarizer, which also reduces the switching current.