Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2005-10-07
Physics
Condensed Matter
Strongly Correlated Electrons
4 pages, 4 figures, to be published in Journal of the Physical Society of Japan, vol. 74, No. 12
Scientific paper
10.1143/JPSJ.74.3159
The temperature dependence of the magnetic susceptibility, \chi (T), is investigated for one-dimensional interacting electron systems at quarter-filling within the Kadanoff-Wilson renormalization-group method. The forward scattering on the same branch (the g_4-process) is examined together with the backward (g_1) and forward (g_2) scattering amplitudes on opposite branches. In connection with lattice models, we show that \chi (T) is strongly enhanced by the nearest-neighbor interaction, an enhancement that surpasses one of the next-nearest-neighbor interaction. A connection between our predictions for \chi (T) and experimental results for \chi (T) in quasi-one-dimensional organic conductors is presented.
Bourbonnais Claude
Fuseya Yuki
Suzumura Yoshikazu
Tsuchiizu Masahisa
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