Spinmotive force due to intrinsic energy of ferromagnetic nanowires

Yuta Yamane, Jun'ichi Ieda, Jun Ichiro Ohe, Stewart Barnes, Sadamichi Maekawa

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7 Scopus citations

Abstract

We study, both analytically and numerically, a spinmotive force arising from the inherent magnetic energy of a domain wall in a wedged ferromagnetic nanowire. In a spatially-nonuniform nanowire, domain walls are subjected to an effective magnetic field, resulting in spontaneous motion of the walls. The spinmotive force mechanism converts the ferromagnetic exchange and demagnetizing energy of the nanowire into the electrical energy of the conduction electrons through the domain wall motion. The calculations show that this spinmotive force can be several microvolts, which is easily detectable by experiments.

Original languageEnglish (US)
Article number093003
JournalApplied Physics Express
Volume4
Issue number9
DOIs
StatePublished - Sep 2011

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ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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