Accession Number:

ADA156025

Title:

Noise in Sodium Beta Alumina Crystals.

Descriptive Note:

Technical rept.,

Corporate Author:

UTAH UNIV SALT LAKE CITY DEPT OF PHYSICS

Personal Author(s):

Report Date:

1985-09-01

Pagination or Media Count:

14.0

Abstract:

Experimental current noise spectra for single crystal sodium beta alumina are essentially identical to those previously reported for polycrystalline ceramic specimens. The measured noise power is proportional to the square of the dc sample current and varies as 1.5f, which suggests conductivity fluctuations arising from diffusion of the mobile ions. Only a small fraction of the mobile ions appear to participate in the diffusion noise process and the number is thermally activated with an activation energy of 0.8eV, in agreement with data from ceramic specimens. Additional keywords diffusion noise superionic conductors experimental data. Author.

Subject Categories:

  • Ceramics, Refractories and Glass
  • Electricity and Magnetism

Distribution Statement:

APPROVED FOR PUBLIC RELEASE