Stability of Spinmotive Force in Perpendicularly Magnetized Nanowires under High Magnetic Fields

Details Stability of Spinmotive Force in Perpendicularly Magnetized Nanowires under High Magnetic Fields Stability of Spinmotive Force in Perpendicularly Magnetized Nanowires under High Magnetic Fields

2012-02-20

arxiv.org/abs/1202.4256v2

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

submitted to Applied Physics Letters

Scientific paper

Spinmotive force induced by domain wall motion in perpendicularly magnetized nanowires is numerically demonstrated. We show that using nanowires with large magnetic anisotropy can lead to a high stability of spinmotive force under strong magnetic fields. We observe spinmotive force in the order of tens of microvolt in a multilayered Co/Ni nanowire and in the order of several hundred microvolt in a FePt nanowire; the latter is two orders of magnitude greater than that in permalloy nanowires reported previously. The narrow structure and low mobility of a domain wall under magnetic fields in perpendicularly magnetized nanowires permits downsizing of spinmotive force devices.

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