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JETP Letters

, Volume 106, Issue 10, pp 677–681 | Cite as

Goldstone mode of a magnon Bose−Einstein condensate in MnCO3

  • Yu. M. Bunkov
  • A. V. Klochkov
  • T. R. Safin
  • K. R. Safiullin
  • M. S. Tagirov
Condensed Matter
  • 32 Downloads

Abstract

The low-frequency phase modulation of a radio-frequency field is used to excite a low-frequency collective mode in the Bose−Einstein condensate (BEC) of quasinuclear magnons in an antiferromagnetic material with the Suhl−Nakamura interaction. This oscillation mode is similar to the Goldstone torsional mode observed in antiferromagnetic superfluid 3He–B. The results clearly demonstrate the existence of the BEC in the systems under study.

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Copyright information

© Pleiades Publishing, Inc. 2017

Authors and Affiliations

  • Yu. M. Bunkov
    • 1
  • A. V. Klochkov
    • 1
  • T. R. Safin
    • 1
  • K. R. Safiullin
    • 1
    • 2
  • M. S. Tagirov
    • 1
    • 2
  1. 1.Kazan Federal UniversityKazanRussia
  2. 2.Institute of Perspective ResearchTatarstan Academy of SciencesKazanRussia

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