论文标题
jahn- teller效应和自旋轨道耦合的相互作用：三角振动模式的情况
Interplay of the Jahn--Teller Effect and Spin-Orbit Coupling: The Case of Trigonal Vibronic Modes
论文作者
论文摘要
我们研究轨道变性和自旋轨道耦合之间的相互作用，从而引起旋转轨道纠缠状态。作为一个特定的例子，我们分析了带有三角振动模式的三重变性单子$ t_ {2g} $级别的电子相互作用（$ t \ otimes t $问题）。还考虑了涉及四方和三角形振动的电子晶格相互作用的更普遍的问题。结果表明，这种相互作用的结果至关重要地取决于$ t_ {2g} $水平的职业，从而导致通过自旋轨道耦合抑制或增强Jahn-Teller效应。
We study an interplay between the orbital degeneracy and spin-orbit coupling giving rise to spin-orbital entangled states. As a specific example, we analyze the interaction of electrons occupying triply degenerate single-ion $t_{2g}$ levels with trigonal vibronic modes (the $t\otimes T$ problem). A more general problem of the electron-lattice interaction involving both tetragonal and trigonal vibrations is also considered. It is shown that the result of such interaction crucially depends on the occupation of $t_{2g}$ levels leading to either the suppression or enhancement of the Jahn-Teller effect by the spin-orbit coupling.
