Manifestation of vibronic dynamics in infrared spectra of Mott insulating fullerides

被引：5

作者：

Matsuda, Yuki ^{[1
,2
]}

Iwahara, Naoya ^{[1
]}

Tanigaki, Katsumi ^{[2
,3
]}

Chibotaru, Liviu F. ^{[1
]}

机构：

[1] Univ Leuven, Theory Nanomat Grp, Celestijnenlaan 200F, B-3001 Leuven, Belgium

[2] Tohoku Univ, Grad Sch Sci, Dept Phys, Aoba Ku, 6-3 Aramaki, Sendai, Miyagi 9808578, Japan

[3] Tohoku Univ, WPI, AIMR, Aoba Ku, 2-1-1 Katahira, Sendai, Miyagi 9808577, Japan

来源：

PHYSICAL REVIEW B | 2018年 / 98卷 / 16期

基金：

日本学术振兴会;

关键词：

LIGHT-INDUCED SUPERCONDUCTIVITY; CHARGED FULLERENES; EXCITATIONS; TRANSITION; ENERGIES; STATE; METAL;

D O I：

10.1103/PhysRevB.98.165410

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The fine structure and temperature evolution of infrared spectra have been intensively used to probe the nature of Jahn-Teller dynamics in correlated materials. At the same time, a theoretical framework to adequately extract the information on the complicated vibronic dynamics from infrared spectra is still lacking. In this work, the first-principles theory of the infrared spectra of dynamical Jahn-Teller system is developed and applied to the Mott-insulating Cs3C60. With the calculated coupling parameters for Jahn-Teller and infrared active vibrational modes, the manifestation of the dynamical Jahn-Teller effect in infrared spectra is elucidated. In particular, the temperature evolution of the infrared line shape is explained. The transformation of the latter into Fano resonance type in metallic fulleride is discussed on the basis of obtained results.

引用

页数：9

共 53 条

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