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. 2017 Feb;29(8).
doi: 10.1002/adma.201601575. Epub 2017 Jan 18.

Initialization-Free Multilevel States Driven by Spin-Orbit Torque Switching

Kuo-Feng Huang  1 , Ding-Shuo Wang  1 , Ming-Han Tsai  1 , Hsiu-Hau Lin  2 , Chih-Huang Lai  1
Affiliations

Initialization-Free Multilevel States Driven by Spin-Orbit Torque Switching

Kuo-Feng Huang et al. Adv Mater. 2017 Feb.

Abstract

By engineering multidomain formation in Co/Pt multilayers, it is demonstrated how multilevel storage can be achieved by spin-orbit torque switching. It is rather remarkable that, by modulating the writing pulse conditions, the final magnetization states can be controlled, independent of the initial configurations. The initialization-free multilevel memory advances the spin-orbit-torque magnetic random access memory to higher storage density for practical applications.

Keywords: Co/Pt multilayers; initialization-free; multilevel; spin-orbit torque.

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