Magnetic domain-wall logic.
"Spintronics," in which both the spin and charge of electrons are used for logic and memory operations, promises an alternate route to traditional semiconductor electronics. A complete logic architecture can be constructed, which uses planar magnetic wires that are less than a micrometer in width. Logical NOT, logical AND, signal fan-out, and signal cross-over elements each have a simple geometric design, and they can be integrated together into one circuit. An additional element for data input allows information to be written to domain-wall logic circuits.
Allwood
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Department of Engineering Materials, University of Sheffield, Sir Robert Hadfield Building, Portobello Street, Sheffield S1 3JD, UK.
Xiong
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Faulkner
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Atkinson
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Petit
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Cowburn
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