Ionic-to-neutral phase transformation induced by photoexcitation of the charge-transfer band in tetrathiafulvalene-p-chloranil crystals

被引：78
|
作者：
Suzuki, T [1 ]
Sakamaki, T
Tanimura, K
Koshihara, S
Tokura, Y
机构：
[1] Nagoya Univ, Dept Phys, Nagoya, Aichi 4648602, Japan
[2] Tokyo Inst Technol, Dept Appl Phys, Tokyo 152, Japan
[3] Univ Tokyo, Dept Engn Phys, Tokyo 113, Japan
来源：
PHYSICAL REVIEW B | 1999年 / 60卷 / 09期
关键词：
D O I：
10.1103/PhysRevB.60.6191
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The transformation from ionic to neutral phases in tetrathiafulvalene-p-chloranil crystals is induced by exciting the charge-transfer absorption band below the transition temperature. The transformation takes place only above a threshold intensity of excitation, and the efficiency of generating neutral-phase domains is lower than the case induced by the excitation in intramolecular optical transitions of tetrathiafulvalene molecules. The mechanism of the photoinduced phase transition in this crystal is discussed based on these results. [S0163-1829(99)15133-6].
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页码：6191 / 6193
页数：3
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