Journal
PHYSICAL REVIEW B
Volume 81, Issue 13, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.81.132401
Keywords
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Funding
- NSF [DMR-0084173, DMR-0502705, DMR-0502706]
- NHMFL-UCG
- DOE-Basic Energy Sciences [DE-SC0002613]
- EIEG
- AFOSR MURI
- NSERC
- CIFAR
- U.S. Department of Energy (DOE) [DE-SC0002613] Funding Source: U.S. Department of Energy (DOE)
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We report the growth and the characterization of single crystals of the S=1/2 spin-dimer compound Pb2V3O9. 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*proportional to (H-H-c1)(1/phi), with phi = (2.00+/-0.04).
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