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161221-N-N0204-001.JPG Photo By: Daniel Parry

WASHINGTON, D.C. - Conceptual rendering of a spin-filtering graphene junction: Films of nickel (shown in blue) and iron (shown in red) contain a mixture of electrons with up and down spins. A few layers of graphene (shown in grey) lie between the metal layers to create a conductive path for electrons of one spin only, while blocking the other spin. A current driven though the metallic junction (labeled as 'J') becomes spin polarized. (U.S. Naval Research Laboratory) RELEASED


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This photograph is considered public domain and has been cleared for release. If you would like to republish please give the photographer appropriate credit.



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