Longitudinal Spin Correlation in Spin-1/2 Dimerized XY Chain.II.Finite Temperature
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概要
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We exactly calculate the long-distance asymptotic behavior of the longitudinal spincorrelation Ra<S7Sf>of the spin-1/2 dimerized .X'}chain at finite temperatures.The spin correlation R decays in the exponential law with the correlation length l;(T ),which decreases with the increase of T. The present results are compared with thoseobtained by the use of the phase Hamiltonian method.[.A'}model, spin correlation, bond alternation, dimerization, spin-Peierls transi- ll lion, Jordan-Wigner transformationl
- 社団法人日本物理学会の論文
- 1989-06-15
著者
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OKAMOTO Kiyomi
Department of Physics, Tokyo Institute of Technology
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Okamoto Kiyomi
Department Of Physics Faculty Of Science Tokyo Institute Of Technology
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Okamoto Kiyomi
Department Of Applied Physics Faculty Of Science Tokyo Institute Of Technology
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