SEARCH FOR PHOTOINDUCED ABSORPTION IN CHARGE-DENSITY-WAVE MATERIALS WITH NON-HALF-FILLED BANDS

被引：12

作者：

MINTON, G ^{[1
]}

BRILL, JW ^{[1
]}

机构：

[1] UNIV KENTUCKY,DEPT PHYS & ASTRON,LEXINGTON,KY 40506

来源：

PHYSICAL REVIEW B | 1992年 / 45卷 / 15期

关键词：

D O I：

10.1103/PhysRevB.45.8256

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We describe experiments to search for photoinduced absorption (PA) due to midgap soliton states in quasi-one-dimensional charge-density-wave materials with band filling N/M not-equal 1/2. Experiments were done on trimethyl-ammonium-iodide-tetracyanoquinodimethane (N/M = 1/3), K0.3MoO3 (N/M = 3/4), and TaS3 (N/M = 1/4). Both spectroscopic and broadband searches were made for PA signals. In all cases, no PA was observed. The results are interpreted in terms of the probabilities of formation and lifetimes of soliton states.

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页码：8256 / 8263

页数：8

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