Abstract
The dc electrical conductivity of rare-earth doped ceria has been measured as a function of temperature (300–600 K) and composition (0.05–15 mol% M2O3) on using the complex impedance technique. Five dopants have been selected, yttrium and the lanthanides Yb, Gd, Nd, and La. For all of them, the variations of the activation energy versus dopant concentration are similar and characterized by the existence of a minimum. This peculiar property can be understood if attractive interactions between immobile dopant ions and mobile oxygen vacancies are taken into account. From an analysis of the experimental results, it is concluded that this interaction extends at least to third or fourth nearest neighbors depending on the size and the electronic configuration of the dopant ion.
Similar content being viewed by others
References
M.J. Murray, S.P.S. Badwal: InCeramic Developments, Materials Science Forum, ed. by C.C. Sorrell and B. Ben-Nissan (Trans. Tech. Publications Ltd., Switzerland 1988) Vols. 34–36, pp. 213–217
T.H. Etsell, S.N. Flengas: Chem. Rev.70, 339–376 (1970)
H.L. Tuller: InNon-Stoichiometric Oxides, ed. by O. Toft Sorensen (Academic, New York 1981) pp. 271–335
Da Yu Wang, D.S. Park, J. Griffith, A.S. Nowick: Solid State Ionics2, 95–105 (1981)
K. El Adham: Dissertation, Univ. of Grenoble (France) (1978)
A. Overs, I. Riess: J. Am. Ceram. Soc.65, 606–609 (1982)
P. Abélard: Dissertation, Univ. of Orléans (France) (1983)
J.A. Kilner, B.C.H. Steele: InNon-Stoichiometric Oxides, ed. by O. Toft Sorensen (Academic, New York 1981) pp. 233–269
K. Fuda, K. Kishio, S. Yamauchi, K. Fueki, Y. Onoda: J. Phys. Chem. Solids45, 1253–1257 (1984)
K. Fuda, K. Kishio, S. Yamauchi, K. Fueki: J. Phys. Chem. Solids46, 1141–1146 (1985)
V. Butler, C.R.A. Catlow, B.E.F. Fender, J.H. Harding: Solid State Ionics8, 109–113 (1983)
P. Abélard, A. Sylvestre, J.F. Baumard: Proc. 6th Risö Int. Symp. on Materials Science, ed. by O. Toft Sorensen (Risö, Denmark 1985) pp. 273–278
A.D. Murray, G.E. Murch, C.R.A. Catlow: Solid State Ionics18/19, 196–202 (1986)
R.D. Shannon: Acta Cryst. A32, 751–767 (1976)
A. Argoitia: Dissertation, Univ. of Limoges (France) (1986)
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Faber, J., Geoffroy, C., Roux, A. et al. A Systematic investigation of the dc electrical conductivity of rare-earth doped ceria. Appl. Phys. A 49, 225–232 (1989). https://doi.org/10.1007/BF00616848
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF00616848