Ising transition in a one-dimensional quarter-filled electron system with dimerization - Archive ouverte HAL
Communication Dans Un Congrès Année : 2002

Ising transition in a one-dimensional quarter-filled electron system with dimerization

Résumé

We examine critical properties of the quarter-filled one-dimensional Hubbard model with dimerization and with the onsite and nearest-neighbor Coulomb repulsion U and V. By utilizing the bosonization method, it is shown that the system exhibits an Ising quantum phase transition from the Mott insulating state to the charge-ordered insulating state. It is also shown that the dielectric permittivity exhibits a strong enhancement as decreasing temperature with power-law dependence at the Ising critical point.

Dates et versions

hal-00007692 , version 1 (26-07-2005)

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Masahisa Tsuchiizu, Edmond Orignac. Ising transition in a one-dimensional quarter-filled electron system with dimerization. Correlated Electrons, 2001, Kashiwa, Chiba Prefecture, Japan. pp.1459, ⟨10.1016/S0022-3697(02)00003-3⟩. ⟨hal-00007692⟩
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