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

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.

SUBMITTER: Currivan-Incorvia JA

PROVIDER: S-EPMC4729928 | biostudies-literature |

REPOSITORIES: biostudies-literature

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