Reversible electrochromic effect accompanying domain-inversion in LiNbO3:Ru:Fe crystals

A reversible electrochromic effect during the electrical poling process in LiNbO3:Ru:Fe crystals at room temperature is observed. In electrode area, both electrochromism and domain-inversion occur mutually and electrochromism is reversible during back-switch poling, which are experimentally verified...

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Bibliographic Details
Published in:Applied physics letters 2005-09, Vol.87 (12)
Main Authors: Xi, Qingxin, Liu, De’an, Zhi, Ya’nan, Luan, Zhu, Liu, Liren
Format: Article
Language:English
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Summary:A reversible electrochromic effect during the electrical poling process in LiNbO3:Ru:Fe crystals at room temperature is observed. In electrode area, both electrochromism and domain-inversion occur mutually and electrochromism is reversible during back-switch poling, which are experimentally verified, and a microstructure model to explain the mechanism is proposed. In addition, different from the undoped LiNbO3 crystals, the breakdown field (>25.0kV∕mm) is higher than the coercive (21.0kV∕mm) measured in LiNbO3:Ru:Fe, which proves a possible new technique to realize domain-inversion by constant electric field rather than pulsed one.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.2053356