Spinmotive force due to intrinsic energy of ferromagnetic nanowires

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

Research output: Contribution to journalArticle

7 Citations (Scopus)

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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Domain walls
Nanowires
domain wall
nanowires
electric power
conduction electrons
energy
Magnetic fields
Electrons
magnetic fields
Experiments

ASJC Scopus subject areas

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

Cite this

Spinmotive force due to intrinsic energy of ferromagnetic nanowires. / Yamane, Yuta; Ieda, Jun'ichi; Ohe, Jun Ichiro; Barnes, Stewart; Maekawa, Sadamichi.

In: Applied Physics Express, Vol. 4, No. 9, 093003, 09.2011.

Research output: Contribution to journalArticle

Yamane, Yuta ; Ieda, Jun'ichi ; Ohe, Jun Ichiro ; Barnes, Stewart ; Maekawa, Sadamichi. / Spinmotive force due to intrinsic energy of ferromagnetic nanowires. In: Applied Physics Express. 2011 ; Vol. 4, No. 9.
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