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Nanomagnetic Logic: Demonstration of directed signal flow for field-coupled computing devices

In Nanomagnetic Logic (NML), computing operations are performed by non-volatile, field-coupled nanomagnets. For information propagation in nanomagnetic wires between logic gates, directed signal flow has to be implemented in the field-coupled devices. In this paper we present the solution for direct...

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Main Authors: Breitkreutz, S., Kiermaier, J., Xueming Ju, Csaba, G., Schmitt-Landsiedel, D., Becherer, M.
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Kiermaier, J.
Xueming Ju
Csaba, G.
Schmitt-Landsiedel, D.
Becherer, M.
description In Nanomagnetic Logic (NML), computing operations are performed by non-volatile, field-coupled nanomagnets. For information propagation in nanomagnetic wires between logic gates, directed signal flow has to be implemented in the field-coupled devices. In this paper we present the solution for directed information propagation in a wire realized in NML with perpendicular magnetization. For the first time, non-reciprocal signal flow is experimentally demonstrated for field-coupled nanomagnets and homogeneous clocking fields. Micromagnetic simulations are performed and field-coupled nanomagnets are fabricated by focused ion beam (FIB) lithography and ion beam etching. Partial irradiation with a FIB is investigated to tailor the switching behavior of the nanomagnets. Three coupled nano-magnets in a wire are measured to verify the simulation results. Non-reciprocal field-coupling of the nanomagnets is proven by experiments within a nanomagnetic wire.
doi_str_mv 10.1109/ESSDERC.2011.6044169
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ispartof 2011 Proceedings of the European Solid-State Device Research Conference (ESSDERC), 2011, p.323-326
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source IEEE Xplore All Conference Series
subjects Fabrication
Magnetic hysteresis
Magnetization
Nanoscale devices
Radiation effects
Switches
Wires
title Nanomagnetic Logic: Demonstration of directed signal flow for field-coupled computing devices
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