INVERSE PEIERLS TRANSITION INDUCED BY PHOTOEXCITATION IN POTASSIUM TETRACYANOQUINODIMETHANE CRYSTALS

被引：40

作者：

KOSHIHARA, S ^{[1
]}

TOKURA, Y ^{[1
]}

IWASA, Y ^{[1
]}

KODA, T ^{[1
]}

机构：

[1] UNIV TOKYO,DEPT APPL PHYS,TOKYO 113,JAPAN

来源：

PHYSICAL REVIEW B | 1991年 / 44卷 / 01期

关键词：

D O I：

10.1103/PhysRevB.44.431

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Photoinduced absorption spectra for vibrational and electronic excitations have been investigated in a prototypical one-dimensional Peierls-Hubbard system, potassium tetracyanoquinodimethane crystals. Strong photoinduced-absorption signals and their temperature- and time-dependent characteristics are discussed in terms of dynamics of photoconverted molecular domains with no Peierls distortion in the background Peierls-distorted tetracyanoquinodimethane stacks. A close correlation between domain excitations and photoconductivity has also been confirmed.

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页码：431 / 434

页数：4

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