Accession Number:

ADA234279

Title:

Scaling Theory Applied to Far Infrared Absorption by Metal-Insulator Composite Materials

Descriptive Note:

Corporate Author:

PITTSBURGH UNIV PA DEPT OF PHYSICS AND ASTRONOMY

Personal Author(s):

Report Date:

1989-01-01

Pagination or Media Count:

13.0

Abstract:

Dynamic scaling theory is used to obtain expressions for the far infrared absorption coefficient alpha of metal-insulator granular composite materials near the dc percolation threshold pc in the quasistatic limit. Anomalous frequency dependence is predicted near pc for 50 angstrom radius Au particles. The frequency dependence of alpha obtained from an analysis of published data on Au blacks is inconsistent with the scaling theory for Drude Au particles in the three dimensional limit.

Subject Categories:

  • Laminates and Composite Materials

Distribution Statement:

APPROVED FOR PUBLIC RELEASE