Article ID Journal Published Year Pages File Type
9781711 Journal of Physics and Chemistry of Solids 2005 10 Pages PDF
Abstract
Comparison was made between crystals of thallium chloride and silver chloride on their biasing effects with dc/ac voltage. Previous reports say that, although their electrical conductivities are similar, the dominant charge carriers in the former are the Cl− ions while the Ag+ ions in the latter. The present dc/ac study demonstrates the following: for thallium chloride, although Cl− conduction may be dominant under low bias field, Tl+ conduction supercedes Cl− conduction when the bias field is enhanced. For silver chloride, Ag+ conduction is overwhelming within wide temperature range, to cause easy dielectric breakdown on dc biasing. Concerning the extrinsic conductivity seen at temperatures below 60 °C (thallium chloride) or below 150 °C (silver chloride), it is ascribed to grain-boundary related electron conduction, not to grain-boundary related Tl+ or Ag+ conduction as reported earlier.
Related Topics
Physical Sciences and Engineering Materials Science Electronic, Optical and Magnetic Materials
Authors
,