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The ultimate storage bit : a magnetic skyrmion

Researchers from the Unité Mixte de Physique CNRS/Thales and the Laboratoire de Physiques des Solides have shown by micromagnetic simulations which are the conditions for the stability of isolated skyrmions or chains of skyrmions in magnetic films and especially how these skyrmions can be nucleated experimentally by a strong spin current local injection. We also show how to move effectively isolated skyrmions or chains of skyrmions along nanostripes by an electrical current and detected by a magnetoresistive effect. Our results clearly define a way forward for the use of skyrmions in innovative storage devices or information processing.
J. Sampaio et al., Nature Nanotechnology (2013)