Theory of nonlinear optical response of excitons in solid C-60

被引：20

作者：

Eder, R

Janner, AM

Sawatzky, GA

机构：

[1] Department of Applied and Solid State Physics, University of Groningen

来源：

PHYSICAL REVIEW B | 1996年 / 53卷 / 19期

关键词：

D O I：

10.1103/PhysRevB.53.12786

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We present a theoretical study of the dispersion of Frenkel-type excitons in the low-temperature Pa(3) over bar phase of solid C-60. Exciton propagation is accomplished by an exchangelike two-step process, where an electron-hole pair on a given C-60 molecule is split by the intermolecular kinetic energy and recombines on a neighboring molecule. We apply our results to the theoretical calculation of the nonlinear optical susceptibility for second-harmonic generation, for which we find reasonable agreement with experiment.

引用

收藏

页码：12786 / 12793

页数：8

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