Noise in Single Crystal Pb Beta Alumina.
Abstract
Conductivity fluctuations in single crystal Pb beta' alumina are similar to those previously observed in NA and AG beta' alumina samples. Noise spectra vary as f to the minus 1.5 as expected for diffusion noise. Noise levels are an order of magnitude smaller than in the case of sodium and silver conductors, which may be due to the smaller ion density since the mobile ions are doubly charged. The noise levels are thermally activated with an activation energy of 1.0eV near room temperature. The standard expression for diffusion noise is unable to account for either the observed noise level or temperature dependence. Keywords: Superionic conductors; Beta alumina ceramics; Single crystals.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1987
- Accession Number
- ADA176091
Entities
People
- James J. Brophy
Organizations
- University of Utah