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

Article

关键词: BOND GROUND-STATES;    HALDANE-GAP;    HEISENBERG-ANTIFERROMAGNET;    PHASE-DIAGRAM;    FIELD-THEORY;    QUANTUM;    SPIN-1;    CHAINS;    ALTERNATION;    DYNAMICS;   

DOI  :  10.1103/PhysRevB.65.214405

来源: SCIE

【 摘 要 】

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.

【 授权许可】

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