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 language | English |
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Article number | 132401 |
Journal | Physical Review B - Condensed Matter and Materials Physics |
Volume | 81 |
Issue number | 13 |
DOIs | |
State | Published - 7 Apr 2010 |