Mechanism of confinement in low-dimensional organic conductors

Details Mechanism of confinement in low-dimensional organic conductors Mechanism of confinement in low-dimensional organic conductors

2000-05-08

arxiv.org/abs/cond-mat/0005137v1

J. Phys. Chem. Solids 62 (2001) 93-97

Physics

Condensed Matter

Strongly Correlated Electrons

5 pages, 7 figures, Proc. CREST Int. Workshop, Nagoya 2000, submitted to J. Phys. Chem. Solids

Scientific paper

10.1016/S0022-3697(00)00107-4

Confinement-deconfinement transition in quarter-filled two-coupled chains comprising dimerization, repulsive interactions and interchain hopping has been demonstrated by applying the renormalization group method to the bosonized Hamiltonian. The confinement given by the irrelevant interchain hopping occurs with increasing umklapp scattering which is induced by the dimerization leading to effectively half-filling. It is shown that the transition originates in a competition between a charge gap and the renormalized interchain hopping.

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