Effective mass of the E ⊗ e Jahn-Teller polaron in comparison with the Holstein polaron
Effective mass of the E ⊗ e Jahn-Teller polaron in comparison with the Holstein polaron
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E ⊗ e Jahn-Teller 极化子的有效质量与荷斯坦极化子的比较
DOI：
10.1103/physrevb.61.8631
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发表时间：
1999
影响因子：
3.7
通讯作者：
Y. Takada
中科院分区：
文献类型：
--
作者：
Y. Takada
Institute for Solid State Materials, University of Tokyo, 7-22-1 Roppongi, Minato-ku, Tokyo 106-8666, Japan(2008年2月1日)基于Jahn-Teller极化子自能的精确表达式，我们发现赝自旋旋转的对称性使得顶点校正的效果远低于荷斯坦极化子的校正。这种无效性导致有效质量 m 更小
Institute for Solid State Physics, University of Tokyo, 7-22-1 Roppongi, Minato-ku, Tokyo 106-8666, Japan(February 1, 2008)Based on an exact expression for the self-energy of the Jahn-Teller polaron, we find that symme-try of pseudospin rotation makes the vertex correction much less effective than that for the Holsteinpolaron. This ineffectiveness brings about a smaller effective mass m