Q. M. TUNNELING AS A VISCOELASTIC RELAXATION MECHANISM.

Abstract

It is proposed that quantum mechanical tunneling may be the viscoelastic relaxation mechanism for methyl group containing polymers at low temperatures. This proposal is based on the agreement of the tan sigma peaks at given frequencies with the tunneling frequencies for methyl groups of reasonable barrier heights at corresponding temperatures. The proposed mechanism, in conjunction with published frequency-barrier height correlations, allows the estimation of the barrier heights for a wide range of methyl groups from the knowledge of a single tan delta maximum. The barriers are in general agreement with those obtained by NMR techniques for similar materials. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1969
Accession Number
AD0688361

Entities

People

  • Adi Eisenberg
  • Shimon Reich

Organizations

  • McGill University

Tags

DTIC Thesaurus Topics

  • Agreements
  • Frequency
  • Low Temperature
  • Quantum Tunneling
  • Tunneling

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Organic Chemistry
  • Quantum spin resonance or Electron Paramagnetic Resonance spectroscopy.

Technology Areas

  • Quantum Computing