Institute of Physics, University of Tartu, Riia 142, 51014 Tartu, Estonia.
J Chem Phys. 2013 Mar 14;138(10):104103. doi: 10.1063/1.4792835.
A theory of absorption and resonance Raman scattering of impurity centers in crystals with E⊗e-type Jahn-Teller effect in the excited state is presented. The vibronic interaction with non-totally symmetric local or pseudolocal modes and with a continuum of bath modes (phonons) is considered. A number of specific quantum effects, such as the nonadiabaticity-induced enhancement of the Raman scattering at high-energy excitation, the size effect of the final state, the interference of different channels of scattering, the Fermi resonances in the conical intersection, and others, were shown to become apparent in the calculated spectra. The vibronic interaction with phonons essentially determines the structure of the spectra.
本文提出了一种关于具有激发态 E⊗e 型 Jahn-Teller 效应的晶体中杂质中心的吸收和共振拉曼散射的理论。本文考虑了与非完全对称局域或赝局域模式以及与浴模式（声子）连续体的振子相互作用。许多具体的量子效应，如高能激发下非绝热诱导的拉曼散射增强、终态的尺寸效应、不同散射通道的干涉、圆锥交叉中的费米共振等，在计算的光谱中表现得非常明显。与声子的振子相互作用实质上决定了光谱的结构。
