Bond Operator Mean Field Approach to the Magnetization Plateaux in Quantum Antiferromagnets -- Application to the S=1/2 Coupled Dimerized Zigzag Heisenberg Chains

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dc.creatorHida, Kazuo
dc.creatorShiino, Masaru
dc.creatorChen, Wei
dc.date2004-01-31
dc.date2004-06-15
dc.date.accessioned2026-07-25T23:00:52Z
dc.descriptionThe magnetization plateaux in two dimensionally coupled S=1/2 dimerized zigzag Heisenberg chains are investigated by means of the bond operator mean field approximation. In the absence of the interchain coupling, this model is known to have a plateau at half of the saturation magnetization accompanied by the spontanuous translational symmetry breakdown. The parameter regime in which the plateau appears is reproduced well within the present approximation. In the presence of the interchain coupling, this plateau is shown to be suppressed. This result is also supported by the numerical diagonalization calculation.
dc.description7 pages, 8 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0402008
dc.identifierhttp://arxiv.org/abs/cond-mat/0402008
dc.identifierJ. Phys. Soc. Jpn., 73 (2004) 1587-1592
dc.identifierdoi:10.1143/JPSJ.73.1587
dc.identifier.urihttps://dspace.dare.co.zw/handle/123456789/94662
dc.subjectStrongly Correlated Electrons
dc.subjectStatistical Mechanics
dc.titleBond Operator Mean Field Approach to the Magnetization Plateaux in Quantum Antiferromagnets -- Application to the S=1/2 Coupled Dimerized Zigzag Heisenberg Chains
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