Phys. Rev. B 65, 214405 (2002) [5 pages]Magnetization process for a quasi-one-dimensional S=1 antiferromagnetReceived 9 January 2002; published 17 May 2002 We investigate the magnetization process for a quasi-one-dimensional S=1 antiferromagnet with bond alternation. By combining the density matrix renormalization group method with the interchain mean-field theory, we discuss how the interchain coupling affects the magnetization curve. It is found that the width of the magnetization plateau is considerably reduced upon introducing the interchain coupling. We obtain the phase diagram in a magnetic field. The effect of single-ion anisotropy is also addressed. © 2002 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevB.65.214405
DOI:
10.1103/PhysRevB.65.214405
PACS:
75.10.Jm, 75.30.Gw, 75.40.Cx
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