Interaction between propagating spin waves and domain walls on a ferromagnetic nanowire

Kim, June Seo; Stärk, Martin; Kläui, Mathias; Yoon, Jin Ho; You, Chun-Yeol; Lopez-Diaz, Luis; Martinez, E.

Interaction between propagating spin waves and domain walls on a ferromagnetic nanowire

Files

Kim_Interaction_Phys Rev B 174428.pdf(1.69 MB)

Date

2012

Authors

Kim, June Seo

Stärk, Martin

Kläui, Mathias

Yoon, Jin Ho

You, Chun-Yeol

Lopez-Diaz, Luis

Martinez, E.

EU project number

208162

Project

MASPIC (7. RP)

Collections

Physik

Publication type

Journal article

Published in

Physical Review B ; 85 (2012), 17. - ISSN 1098-0121

Abstract

We numerically investigate the interaction between propagating spin waves and a transverse domain wall in a nanowire by using micromagnetic simulations. In order to understand the mechanisms that lead to domain wall motions, we calculate domain wall velocity in a defect-free nanowire and the depinning fields for a pinned domain wall that is depinned in and against the direction of the spin-wave propagation. We find that the physical origin of the spin-wave-induced domain wall motion strongly depends on the propagating spin-wave frequency. At certain spin-wave frequencies, transverse domain wall vibrations lead to transverse wall displacements by the spin waves, while at other frequencies, large spin-wave reflection drives domain wall motion. By analyzing the depinning field calculations, the different underlying physical mechanisms are distinguished.

Subject (DDC)

530 Physics

Cite This

ISO 690

KIM, June Seo, Martin STÄRK, Mathias KLÄUI, Jin Ho YOON, Chun-Yeol YOU, Luis LOPEZ-DIAZ, E. MARTINEZ, 2012. Interaction between propagating spin waves and domain walls on a ferromagnetic nanowire. In: Physical Review B. 85(17). ISSN 1098-0121. Available under: doi: 10.1103/PhysRevB.85.174428

BibTex

@article{Kim2012Inter-19794,
  year={2012},
  doi={10.1103/PhysRevB.85.174428},
  title={Interaction between propagating spin waves and domain walls on a ferromagnetic nanowire},
  number={17},
  volume={85},
  issn={1098-0121},
  journal={Physical Review B},
  author={Kim, June Seo and Stärk, Martin and Kläui, Mathias and Yoon, Jin Ho and You, Chun-Yeol and Lopez-Diaz, Luis and Martinez, E.}
}

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