Neutron scattering evidence for fast ionic oxygen diffusion in the high temperature phases of La2O3
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چکیده
2014 Evidence for fast oxygen diffusion in the H and X high temperature phases of La2O3 is presented from neutron diffraction background analysis and neutron quasielastic scattering data. In the X phase at 2160 °C the translational self diffusion coefficient is of the order of 3 x 10-5 cm2/s and the mean time between jumps on neighbouring tetrahedral sites is around 1.4 x 10-12 s. These are typical values for good superionic conductors. LE JOURNAL DE PHYSIQUE TOME 40, OCTOBRE 1979, Classification Physics Abstracts 66.30H 61.12
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تاریخ انتشار 2017