Spin-Peierls vs. Peierls distortions in a family of conjugated Polymers

Abstract

Distortions in a family of conjugated polymers are studied within two complementary approaches, i.e. within a many-body Valence Bond (VB) approach using a transfer matrix technique to treat the Heisenberg model of the systems, and also in terms of the tight-binding band-theoretic model with interactions limited to nearest neighbors. The computations indicate that both methods predict the presence or absence of the same distortions in most of the polymers studied.

arXiv commentLatex209 (twocolumn revtex), 11 pages; 9 figures available by mail from authors; Phys. Rev. B (in press)

References in corpus (3)

• Surprises on the Way from 1D to 2D Quantum Magnets: the Novel Ladder Materials
• Experimental evidence for a spin-Peierls-transition in ${\alpha }^{\prime }-Na{V}_2{O}_5$
• Exact results for resonating valence bonds states on 2D (narrow) systems

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• Linear combinations of cluster mean-field states applied to spin systems