Phys. Rev. B 66, 054429 (2002) [6 pages]High-field magnetization process in the S=1 quantum spin system Ba3Mn2O8Received 16 April 2002; published 20 August 2002 Ba3Mn2O8 is an S=1 coupled spin dimer system with a gapped ground state. The magnetization process of this compound has been measured up to 50 T at 0.65 K. Magnetization plateaus were clearly observed at zero and at half of the saturation magnetization. The excitation gap was estimated as Δ/kB=12.3 K. The magnetization curve was analyzed and the spin structure in the field-induced ordered state was discussed within the framework of the mean-field approximation. © 2002 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevB.66.054429
DOI:
10.1103/PhysRevB.66.054429
PACS:
75.10.Jm
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