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Superpolaron Model of Metallic Polyacetylene

Published online by Cambridge University Press:  25 February 2011

A. Takahashi ,
S. Yamamoto  and
H. Fukutome
A. Takahashi
Affiliation:
Dept. of Physics, Faculty of Liberal Arts, Yamaguchi University, Yamaguchi 753, Japan
S. Yamamoto
Affiliation:
Dept. of Physics, Kyoto University, Kyoto 606, Japan
H. Fukutome
Affiliation:
Dept. of Physics, Kyoto University, Kyoto 606, Japan
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Abstract

We develop a new model for heavily doped metallic polyacetylene. An electron and a hole injected in a doped chain make localized defects called superpolarons (SP's) in the electronic order parameters (OP) in a charged soliton lattice. The SP's can make quantum intrachain translational motion and interchain transfer via dopant ions. They are stabilized by their quantum motions and SP pairs are spontaneously produced in a high doping regime. The SP's are Fermions and can be a Fermi liquid in the doping regime. Some metallic properties of the Fermi liquid of the SP' s are studied.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 247: Symposium N – Electrical, Optical, and Magnetic Properties of Organic Solid State Materials , 1992 , 583
Copyright
Copyright © Materials Research Society 1992

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References

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