Magnetization process for a quasi-one-dimensional S=1 antiferromagnet

Abstract

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.

6 pages, 7 eps figures

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• NMR and dc-susceptibility studies of NaVGe2O6
• Quantum phase transitions of the S=1 Shastry-Sutherland model
• Cluster Mean Field plus Density Matrix Renormalization theory for the Bose Hubbard Model
• Supersolid states in a hard-core Bose-Hubbard model on a layered triangular lattice
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