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



Jean Anne Currivan-Incorvia, S. Siddiqui, S. Dutta, Eric R. Evarts, J. Zhang, D. Bono, C A. Ross, M. A. Baldo


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.
Nature Communications


spintronic, energy efficiency, nonvolatility, logic, circuit, domain wall, three terminal, magnetic tunnel junction, prototypes, ferromagnetic wire


Currivan-Incorvia, J. , Siddiqui, S. , Dutta, S. , Evarts, E. , Zhang, J. , Bono, D. , Ross, C. and Baldo, M. (2016), Logic circuit prototypes for three-terminal magnetic tunnel junctions with mobile domain walls, Nature Communications, [online],, (Accessed May 28, 2024)


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Created January 11, 2016, Updated October 12, 2021