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@ARTICLE{Koettgen:885475,
author = {Koettgen, Julius and Dück, Gerald and Martin, Manfred},
title = {{T}he oxygen ion conductivity of {L}u doped ceria},
journal = {Journal of physics / Condensed matter},
volume = {32},
number = {26},
issn = {1361-648X},
address = {Bristol},
publisher = {IOP Publ.},
reportid = {FZJ-2020-03858},
pages = {265402 -},
year = {2020},
abstract = {The oxygen ion conductivity of polycrystalline samples of
Lu doped ceria is studied using impedance spectroscopy.
Lutetium doped ceria is of particular interest as Lu has a
similar ionic radius as the host cation Ce. The change of
the ionic conductivity as a function of the Lu dopant
fraction is investigated in detail revealing a similar
behavior as Sm doped ceria that has one of the highest ionic
conductivity in ternary cerium oxides. In comparison with
simulations, the experimental dependence of the conductivity
on the dopant fraction reveals that migration barriers for
oxygen vacancy jumps around Lu ions are slightly higher than
for jumps in pure ceria. The absolute conductivity is small
due to the strong trapping of oxygen vacancies near Lu
dopants.},
ddc = {530},
pnm = {Ab-initio study of structure, conductivity and
thermodynamics of doped and non-stoichiometric ceria
$(jara0035_20141101)$},
pid = {$G:(DE-Juel1)jara0035_20141101$},
typ = {PUB:(DE-HGF)16},
doi = {10.1088/1361-648X/ab7d64},
url = {https://juser.fz-juelich.de/record/885475},
}