Observation of magnetic excitations of skyrmion crystal in a helimagnetic insulator Cu 2OSeO 3

Y. Onose, Y. Okamura, S. Seki, S. Ishiwata, Y. Tokura

Research output: Contribution to journalArticlepeer-review

242 Citations (Scopus)

Abstract

We have investigated the low-energy dynamics of the triangular lattice of Skyrmions in a helimagnetic insulator Cu 2OSeO 3 in terms of microwave response. We have observed two elementary excitations of the Skyrmion with different polarization characteristics: the counterclockwise circulating mode at 1GHz with the magnetic field polarization parallel to the Skyrmion plane and the breathing mode at 1.5GHz with a perpendicular magnetic field polarization. These modes reflect the topological nature of Skyrmions and may play a central role in the Skyrmion dynamics.

Original languageEnglish
Article number037603
JournalPhysical Review Letters
Volume109
Issue number3
DOIs
Publication statusPublished - 2012 Jul 20
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Observation of magnetic excitations of skyrmion crystal in a helimagnetic insulator Cu <sub>2</sub>OSeO <sub>3</sub>'. Together they form a unique fingerprint.

Cite this