Cascaded spin motive force driven by the dynamics of the skyrmion lattice

Journal Article · Mon Dec 09 00:00:00 EST 2013 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4838735· OSTI ID:22253857

Ohe, Jun-ichiro; Shimada, Yuhki ^[1]

---

1. Department of Physics, Toho University, 2-2-1 Miyama, Funabashi, Chiba 274-8510 (Japan)

We numerically investigate the spin motive force (SMF) driven by the dynamics of a Skyrmion lattice. The rotating mode of the Skyrmion core excited by the AC magnetic field induces the large spin-dependent electric field near the core. Due to the collective dynamics of Skyrmion lattice, the measurable voltage is enhanced by the cascade effect of the SMF. The amplitude of the AC voltage is estimated to 30 μV in a macroscopic sample, where 100 Skyrmions exist between two probes. We also investigate the SMF due to the dynamics of the helical magnetic state, where the enhancement of the SMF does not occur.

• OSTI ID: 22253857
• Journal Information: Applied Physics Letters, Vol. 103, Issue 24; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
AMPLITUDES
ELECTRIC FIELDS
ELECTRIC POTENTIAL
MAGNETIC FIELDS
SKYRME POTENTIAL
SOLITONS
SPIN