Dynamical mean field theory study of the linear and nonlinear optics of Kondo systems

被引：0

作者：

Jafari, S. Akbar ^{[1
]}

Tohyama, Takami

Maekawa, Sadamichi

机构：

[1] Tohoku Univ, Mat Res Inst, Sendai, Miyagi 9808577, Japan

[2] Isfahan Univ Technol, Dept Phys, Esfahan 84156, Iran

[3] Kyoto Univ, Yukawa Inst Theoret Phys, Kyoto 6068502, Japan

[4] Japan Sci & Technol Agcy, CREST, Kawaguchi, Saitama 3320012, Japan

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2007年 / 76卷 / 04期

关键词：

Kondo systems; optical conductivity; third harmonic generation;

D O I：

10.1143/JPSJ.76.044706

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study linear and nonlinear optical properties of d-electron Kondo system. The effect of Kondo resonance in optical conductivity is to creat a remarkable peak inside the gap. In third harmonic generation spectra also there appear structures inside the gap which correspond to three and two-photon processes from lower Hubbard band to the Kondo resonance state. Behavior of two and four-current correlations near to nu approximate to 0 in Kondo regime can be understood by an asymptotic analysis which reveals a marked difference between two and four-current correlations.

引用

页数：4

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