On the Conduction Mechanism in Granular Materials

Abstract

We discuss the effect of virtual intermediate localized states on inter-grain tunneling that controls conduction in granular conductors on the insulating side of the metal-insulator transition. It is shown that intermediate states can substantially increase inter-grain tunneling transition probabilities and give rise to the conductivity temperature dependence of the form ln(sigma) ^ -(T(0)/T), where x approximately equal 0.4, and to a large enhancement of the conductivity.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 2001
Accession Number
ADP013285

Entities

People

  • I. P. Zvyagin
  • R. Keiper

Organizations

  • Moscow State University

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Conductivity
  • Electron Energy
  • Electron Transitions
  • Electrons
  • Energy
  • Energy Levels
  • Fermi Levels
  • Grain Size
  • Granular Materials
  • Low Temperature
  • Materials
  • Metal Films
  • Metal-Insulator Transitions
  • Quantum Tunneling
  • Standards
  • Transitions
  • Wave Functions

Fields of Study

  • Physics

Readers

  • Quantum Dot Semiconductor Device Photonics and Graphene Optoelectronic Materials and THz Physics.
  • Systems Analysis and Design
  • Thermal Physics or Thermal Science.

Technology Areas

  • Microelectronics
  • Microelectronics - Graphene