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Publication Citation: Current-induced synchronized switching of magnetization

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Author(s): Kyung Jin Lee; Soo-Man Seo;
Title: Current-induced synchronized switching of magnetization
Published: August 07, 2012
Abstract: We propose a multilayer structure that allows a reduced switching current with maintaining high thermal stability of the magnetization. It 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 motion 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.
Citation: Applied Physics Letters
Volume: 101
Issue: 6
Keywords: Current-induced magnetization switching, spin-transfer torque, synchronization
Research Areas: Spintronics
PDF version: PDF Document Click here to retrieve PDF version of paper (557KB)