Konferenzpaper

Jahr der Veröffentlichung: 1997

Seiten: 1393-1398

Zeitschrift: Berichte der Bunsengesellschaft für physikalische Chemie

Bandnummer: 101

Heftnummer: 9

ISSN: 0005-9021

Konferenz: Discussion Meeting on Solute Point Defect Interactions in Crystals

Verlag: Wiley

Abstract: 
The composition dependence of the conductivity of fluorite-related oxides (XOr)(x) (MO2)(1-x) (r = 1 for divalent and r = 3/2 for trivalent dopants X; M = Zr, Ce, Th) has been studied by Monte Carlo simulations. Three simple model potentials have been tested in order to investigate the dopant-vacancy interaction effects on the transport behaviour: nearest neighbour attraction, nearest neighbour repulsion and a barrier-type model potential based on the assumption of a reduced oxygen mobility in the neighbourhood of the dopants. Satisfactory agreement with experiment can be achieved only within the last approach. As shown by the numerical results, percolation theory is essential to relate the local interactions and the long range mobility of the oxygen ions.

Harvard-Zitierstil: Meyer, M. and Nicoloso, N. (1997) MC-study of the anomalous conductivity of fluorite-type solid oxide solutions, Berichte der Bunsengesellschaft für physikalische Chemie, 101(9), pp. 1393-1398

APA-Zitierstil: Meyer, M., & Nicoloso, N. (1997). MC-study of the anomalous conductivity of fluorite-type solid oxide solutions. Berichte der Bunsengesellschaft für physikalische Chemie. 101(9), 1393-1398.