电导率
极化(电化学)
库仑
热传导
离子
拉曼光谱
化学
凝聚态物理
材料科学
物理
作者
J. F. Bocquet,G. Lucazeau
标识
DOI:10.1016/0167-2738(87)90165-2
摘要
Abstract Potential calculations using Coulomb, short-range repulsive and polarization terms have been performed using Wang's method combined with the Busing WMIN version in order to analyze different collective in-phase modes of conductivity in Na+ β-Al2O3. It is concluded that among the various modes, the interstitialcy like caterpillar mechanism is the most favourable for conductivity and that the formation of pairs of Na+ is favoured by the polarization energy. A critical review of some conductivity mechanisms is made. Among the three categories of Na+ ions which are reported, at 300 K, two have a residence time shorter than 5 × 10−10 s. These results are compared with Raman and quasi elastic neutron results.
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