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

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

1997-05-13

arxiv.org/abs/cond-mat/9705121v1

Physics

Condensed Matter

Latex209 (twocolumn revtex), 11 pages; 9 figures available by mail from authors; Phys. Rev. B (in press)

Scientific paper

10.1103/PhysRevB.56.1751

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.

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