Thermodynamic properties of the one-dimensional Kondo insulators studied by the density matrix renormalization group method

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dc.creatorShibata, N.
dc.creatorAmmon, B.
dc.creatorTroyer, M.
dc.creatorSigrist, M.
dc.creatorUeda, K.
dc.date1997-12-30
dc.date.accessioned2026-07-07T06:29:19Z
dc.date.available2026-07-07T06:29:19Z
dc.descriptionThermodynamic properties of the one-dimensional Kondo lattice model at half-filling are studied by the density matrix renormalization group method applied to the quantum transfer matrix. Spin susceptibility, charge susceptibility, and specific heat are calculated down to T=0.1t for various exchange constants. The obtained results clearly show crossover behavior from the high temperature regime of nearly independent localized spins and conduction electrons to the low temperature regime where the two degrees of freedom couple strongly. The low temperature energy scales of the charge and spin susceptibilities are determined and shown to be equal to the quasiparticle gap and the spin gap, respectively, for weak exchange couplings.
dc.description4 pages, 3 Postscript figures, REVTeX, submitted to J. Phys. Soc. Jpn
dc.identifierhttps://arxiv.org/abs/cond-mat/9712315
dc.identifierhttp://arxiv.org/abs/cond-mat/9712315
dc.identifierJ. Phys. Soc. Jpn, Vol. 67, (1998) 1086
dc.identifierdoi:10.1143/JPSJ.67.1086
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/97988
dc.subjectStrongly Correlated Electrons
dc.titleThermodynamic properties of the one-dimensional Kondo insulators studied by the density matrix renormalization group method
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