On the Mott glass in the one-dimensional half-filled charge density waves

Details On the Mott glass in the one-dimensional half-filled charge density waves On the Mott glass in the one-dimensional half-filled charge density waves

2003-08-19

arxiv.org/abs/cond-mat/0308364v1

Physics

Condensed Matter

Strongly Correlated Electrons

13 pages, 5 figures, to be published in J. Phys. Soc. Jpn. 72 No.11 (2003)

Scientific paper

10.1143/JPSJ.72.2908

We study the effect of impurity pinning on a one-dimensional half-filled electron system, which is expressed in terms of a phase Hamiltonian with the charge degree of freedom. Within the classical treatment, the pinned state is examined numerically. The Mott glass, which has been pointed out by Orignac et al. [Phys. Rev. Lett 83 (1999) 2378], appears in the intermediate region where the impurity potential competes with the commensurate potential. Such a state is verified by calculating the soliton formation energy, the local restoring force around the pinned state and the optical conductivity.

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