Highly Efficient Spin-Current Operation in a Cu Nano-Ring

Benedict Andrew Murphy, Andrew James Vick, Marjan Samiepour, Atsufumi Hirohata

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An all-metal lateral spin-valve structure has been fabricated with a medial Copper nano-ring to split the diffusive spin-current path. We have demonstrated significant modulation of the non-local signal by the application of a magnetic field gradient across the nano-ring, which is up to 30% more efficient than the conventional Hanle configuration at room temperature. This was achieved by passing a dc current through a current-carrying bar to provide a locally induced Ampère field. We have shown that in this manner a lateral spin-valve gains an additional functionality in the form of three-terminal gate operation for future spintronic logic.
Original languageEnglish
Article number37398
Pages (from-to)37398
Number of pages6
JournalScientific Reports
Publication statusPublished - 21 Nov 2016

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© The Author(s) 2016

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