Logic circuit prototypes for three-terminal magnetic tunnel junctions with mobile domain walls

TitleLogic circuit prototypes for three-terminal magnetic tunnel junctions with mobile domain walls
Publication TypeJournal Article
Year of Publication2016
AuthorsCurrivan-Incorvia, JA, Siddiqui, S, Dutta, S, Evarts, ER, Zhang, J, Bono, D, Ross, CA, Baldo, MA
JournalNature Communications
Volume7
Pagination10275
Date Published2016/01//
Abstract

Spintronic computing promises superior energy efficiency and nonvolatility compared to conventional field-effect transistor logic. But, it has proven difficult to realize spintronic circuits with a versatile, scalable device design that is adaptable to emerging material physics. Here we present prototypes of a logic device that encode information in the position of a magnetic domain wall in a ferromagnetic wire. We show that a single three-terminal device can perform inverter and buffer operations. We demonstrate one device can drive two subsequent gates and logic propagation in a circuit of three inverters. This prototype demonstration shows that magnetic domain wall logic devices have the necessary characteristics for future computing, including nonlinearity, gain, cascadability, and room temperature operation.