Manipulating the magnetoelectric effect: Essence learned from Co4Nb2 O9

Yuki Yanagi, Satoru Hayami, Hiroaki Kusunose

Research output: Contribution to journalArticlepeer-review

27 Citations (Scopus)


Recent experiments for linear magnetoelectric (ME) response in honeycomb antiferromagnet Co4Nb2O9 revealed that the electric polarization can be manipulated by the in-plane rotating magnetic field in a systematic way. We propose the minimal model by extracting essential ingredients of Co4Nb2O9 to exhibit such ME response. It is the three-orbital model with xy-type atomic spin-orbit coupling (SOC) on the single-layer honeycomb structure, and it is shown to reproduce qualitatively the observed field-angle dependence of the electric polarization. The obtained results can be understood by the perturbative calculation with respect to the atomic SOC. These findings could be useful to explore further ME materials having similar manipulability of the electric polarization.

Original languageEnglish
Article number020404
JournalPhysical Review B
Issue number2
Publication statusPublished - 2018 Jan 10
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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