Spin phases of the helimagnetic insulator Cu2OSeO3 probed by magnon heat conduction

N. Prasai, A. Akopyan, B. A. Trump, G. G. Marcus, S. X. Huang, T. M. McQueen, J. L. Cohn

Research output: Contribution to journalArticle

1 Scopus citations

Abstract

We report studies of thermal conductivity as functions of magnetic field and temperature in the helimagnetic insulator Cu2OSeO3 that reveal novel features of the spin-phase transitions as probed by magnon heat conduction. The tilted conical spiral and low-temperature skyrmion phases, recently identified in small-angle neutron scattering studies, are clearly identified by sharp signatures in the magnon thermal conductivity. Magnon scattering associated with the presence of domain boundaries in the tilted conical phase and regions of skyrmion and conical-phase coexistence are identified.

Original languageEnglish (US)
JournalPhysical Review B
Volume99
Issue number2
DOIs
StatePublished - Jan 17 2019

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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