Possible Bose-Einstein condensate of magnons in single-crystalline Pb 2 V3 O9

  • B. S. Conner
  • , H. D. Zhou
  • , Y. J. Jo
  • , L. Balicas
  • , C. R. Wiebe
  • , J. P. Carlo
  • , Y. J. Uemura
  • , A. A. Aczel
  • , T. J. Williams
  • , G. M. Luke

Research output: Contribution to journalArticlepeer-review

19 Scopus citations

Abstract

We report the growth and the characterization of single crystals of the S=1/2 spin-dimer compound Pb2 V3 O9. Magnetic-susceptibility, torque magnetometry, heat-capacity, and muon-spin-relaxation measurements provide evidence for a field-induced Bose-Einstein condensate of magnons in this system. At low temperatures, the field-dependent phase boundary between the dimerized and the condensed state is well described by the expression T (H-Hc1) 1/φ, with φ= (2.00±0.04).

Original languageEnglish
Article number132401
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume81
Issue number13
DOIs
StatePublished - Apr 7 2010
Externally publishedYes

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