Microwave nonreciprocity of magnon excitations in the noncentrosymmetric antiferromagnet Ba2MnGe2O7

Y. Iguchi, Y. Nii, M. Kawano, H. Murakawa, N. Hanasaki, Y. Onose

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

We have investigated the microwave nonreciprocity for a noncentrosymmetric antiferromagnet Ba2MnGe2O7. The magnon modes expected by the conventional spin wave theory for staggered antiferromagnets are certainly observed. The magnitudes of exchange interaction and magnetic anisotropy are obtained by the comparison with the theory. The microwave nonreciprocity is identified for one of these modes. The relative magnitude of microwave nonreciprocity can be explained with the use of spin wave theory and Kubo formula.

Original languageEnglish
Article number064416
JournalPhysical Review B
Volume98
Issue number6
DOIs
Publication statusPublished - 2018 Aug 20

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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