Clocking schemes for field coupled devices from magnetic multilayers
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This paper introduces a clocking scheme that can be applied in magnetic field-coupled computing devices made from Co/Pt multilayers. The clocking wires are buried under the magnetic computing layer. Oscillating currents running through these wires generate an easy-axis field in the plane of the magnets. We show that this field can propagate signals between the magnetic dots and prevents frustration and splitting of the dots into multiple domains. We demonstrate our concept on a full micromagnetic simulation of an XOR gate. We argue that largescale logic devices could be built based on this architecture. ©2009 IEEE.