Abstract
A reversible electrochromic effect accompanying domain-inversion during the electrical poling process in LiNbO3: Ru: Fe crystals at room temperature has been observed. In electrode area, both electrochromism and domain-inversion occur alternately, and electrochromism is also reversible during back-switch poling, which is experimentally verified and whose mechanism is briefly explained using a microstructure ferroelectric model. In addition, because of the enhancing electrochromic effect, different from the undoped LiNbO3 crystals, the coercive filed (21.0 kV/mm or so) measured in LiNbO3: Ru: Fe is lower than its breakdown field, thus providing a possible new technique for realizing the domain-inversion by constant electric field rather than a pulsed one.
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Xi, Q., De’an, L., Zhi, Y. et al. Electrochromic effect in domain-inversion process in LiNbO3: Ru: Fe crystals. Chin.Sci.Bull. 50, 2799–2803 (2005). https://doi.org/10.1360/982005-589
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DOI: https://doi.org/10.1360/982005-589