Metallic Microwave Dielectric Response of Polyacetylene.

Abstract

Using dielectric constant and conductivity at microwave frequency, we study the differences between highly conducting polyacetylenes and standard metals. We report that the microwave dielectric constant at room temperature for heavily-iodine doped Tsukamoto polyacetylene films is negative and of record size. This demonstrates that the highly conducting state is metallic despite the decrease in conductivity with decreasing temperature. The anomalously long transport time is attributed to suppression of both phonon and impurity backward scattering in a structure with an open Fermi surface. We analyze the temperature dependent data using a model of three-dimensional metallic fiber segments coupled by weak links within which one-dimensional localization effects occur. jg p.3

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Document Details

Document Type
Technical Report
Publication Date
Aug 09, 1995
Accession Number
ADA298638

Entities

People

  • Arthur J. Epstein
  • G. Du
  • J. Joo
  • J. Tsukamoto
  • V. N. Prigondin

Organizations

  • Ohio State University

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Charge Carriers
  • Chemistry
  • Conductive Polymers
  • Dielectric Permittivity
  • Dielectric Properties
  • Diseases And Disorders
  • Frequency
  • Materials
  • Metal-Insulator Transitions
  • Microwaves
  • Physics
  • Polymers
  • Scattering
  • Standards
  • Three Dimensional
  • Transport Ships
  • Universities

Readers

  • Computer Networking
  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Materials Science and Engineering.