THEORETICAL APPROACH FOR PROTONIC CONDUCTION IN PEROVSKITE-OXIDE CERAMICS

Authors
MATSUSHITA E TANASE A
Citation
E. Matsushita et A. Tanase, THEORETICAL APPROACH FOR PROTONIC CONDUCTION IN PEROVSKITE-OXIDE CERAMICS, Solid state ionics, 97(1-4), 1997, pp. 45-50
Citations number
11
Categorie Soggetti
Physics, Condensed Matter","Chemistry Physical
Journal title
Solid state ionics → ACNP
ISSN journal
01672738
Volume
97
Issue
1-4
Year of publication
1997
Pages
45 - 50
Database
ISI
SICI code
0167-2738(1997)97:1-4<45:TAFPCI>2.0.ZU;2-Z
Abstract
In perovskite-type oxide based protonic conductors (ex. Sc-doped SrTiO 3), a quantum mechanical calculation is developed to suggest the condu ction mechanism. By extending one-dimensional O-H(D)... O hydrogen bon ds to a three-dimensional bond network, the zero-point vibration and t unneling motion of a proton (or deuteron) on the bond are investigated in the perovskite structure. Numerical results are given and used to interpret the H(D)-isotope effect on the electrical conductivity and t he infrared absorption spectra.