Research output: Contribution to journal › Article › peer-review
Molecular dynamics simulation of the Ba1-xGdxF2+x system in a wide temperature range. / Gotlib, I. Yu; Murin, I. V.; Piotrovskaya, E. M.
In: Solid State Ionics, Vol. 159, No. 1-2, 03.2003, p. 49-62.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Molecular dynamics simulation of the Ba1-xGdxF2+x system in a wide temperature range
AU - Gotlib, I. Yu
AU - Murin, I. V.
AU - Piotrovskaya, E. M.
N1 - Funding Information: The authors thank the Russian Foundation for Basic Research (grant 01-03-32309) and the Ministry of Education of the Russian Federation “Universities of Russia” program (grant 015.05.01.030) for financial support.
PY - 2003/3
Y1 - 2003/3
N2 - Internal energy, diffusion coefficients, ion-ion correlation functions, anion density and characteristics of ionic motion in barium gadolinium fluoride (Ba1-xGdxF2+x, 00.1, both 4b and 48i positions in the lattice were relatively favorable for interstitial F- ions. At low dopant concentrations, anion migration in the simulated system takes place mainly by the interstitialcy mechanism with noncollinear hops. The computer experiment confirmed that trigonal Gd3+-F- (interstitial) "dipole complexes" are preferable in comparison with tetragonal ones. Existence of the tendency to clustering of gadolinium ions in the simulated system was also confirmed using elements of Monte Carlo technique.
AB - Internal energy, diffusion coefficients, ion-ion correlation functions, anion density and characteristics of ionic motion in barium gadolinium fluoride (Ba1-xGdxF2+x, 00.1, both 4b and 48i positions in the lattice were relatively favorable for interstitial F- ions. At low dopant concentrations, anion migration in the simulated system takes place mainly by the interstitialcy mechanism with noncollinear hops. The computer experiment confirmed that trigonal Gd3+-F- (interstitial) "dipole complexes" are preferable in comparison with tetragonal ones. Existence of the tendency to clustering of gadolinium ions in the simulated system was also confirmed using elements of Monte Carlo technique.
KW - Barium gadolinium fluoride
KW - Computer simulation
KW - Molecular dynamics
KW - Superionic conductors
UR - http://www.scopus.com/inward/record.url?scp=0037340740&partnerID=8YFLogxK
U2 - 10.1016/S0167-2738(03)00028-6
DO - 10.1016/S0167-2738(03)00028-6
M3 - Article
AN - SCOPUS:0037340740
VL - 159
SP - 49
EP - 62
JO - Solid State Ionics
JF - Solid State Ionics
SN - 0167-2738
IS - 1-2
ER -
ID: 88004103