@article{oai:sucra.repo.nii.ac.jp:00013326,
 author = {Chen, Wei and 飛田, 和男 and Sanctuary, Bryan, Clifford},
 issue = {1},
 journal = {JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN},
 month = {},
 note = {http://jpsj.ipap.jp/link?JPSJ/69/237/ | http://jpsj.ipap.jp/link?JPSJ/69/237/, arXiv:cond-mat/9908125v1, One dimensional S = 1 antiferromagnetic Heisenberg chains with bond alternation and uniaxial single-ion-type anisotropy are studied by numerical exact diagonalization of finite size systems. We calculate the ground state phase diagram using the twisted boundary condition method for D greater than or equal to 0. The ground states of this model contain the Haldane state, large-D state and the dimer state. Using conformal field theory and the level spectroscopy method, we calculate the D and delta-dependence of the Luttinger liquid paraments K and the critical exponent nu of the energy gap., text, application/pdf},
 pages = {237--241},
 title = {Critical Properties of Spin-1 Antiferromagnetic Heisenberg Chains with Bond Alternation and Uniaxial Single-Ion-Type Anisotropy},
 volume = {69},
 year = {2000},
 yomi = {ヒダ, カズオ}
}