Mashkina E, Magerl A, Ollivier J, Göbbels M, Seifert F (2006)
Publication Language: English
Publication Type: Journal article
Publication year: 2006
Book Volume: 74
Pages Range: 214106
The dynamics of long range translation and local motions of oxygen in SrTi0.2 Fe0.8 O3-δ have been studied by electrical conductivity and quasielastic neutron scattering. The activation energy of the translational ionic diffusion measured by electrical conductivity is 0.97 eV for T>900°C. Both quasielastic linewidths and quasielastic intensities in neutron scattering show the presence of two motions. The Q independences indicate a localized character for these oxygen diffusion modes with activation energies of 0.43 and 0.27 eV for the "fast" and the "slow" local jumps, respectively. A model for the local oxygen motion is proposed involving oxygen jumps in the (0 k 0) plane either directly to the next unit cell or performing detours combining two and two site jumps resulting in the same final momentum transfer. © 2006 The American Physical Society.
APA:
Mashkina, E., Magerl, A., Ollivier, J., Göbbels, M., & Seifert, F. (2006). Oxygen mobility in the perovskite SrTi1-xFexO3-ð (x = 0.8). Physical Review B - Condensed Matter and Materials Physics, 74, 214106.
MLA:
Mashkina, Elena, et al. "Oxygen mobility in the perovskite SrTi1-xFexO3-ð (x = 0.8)." Physical Review B - Condensed Matter and Materials Physics 74 (2006): 214106.
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