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A reversible electrochromic effect accompany- ing domain-inversion during the electrical poling process in LiNbO3: Ru: Fe crystals at room temperature has been ob- served. In electrode area, both electrochromism and do- main-inversion occur alternately, and electrochromism is also reversible during back-switch poling, which is experi- mentally verified and whose mechanism is briefly explained using a microstructure ferroelectric model. In addition, be- cause of the enhancing elcctrochromic 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 break- down field, thus providing a possible new technique for real- izing the domain-inversion by constant electric field rather than a pulsed one.
A reversible electrochromic effect accompanying ingoing-inversion during the electrical poling process in LiNbO3: Ru: Fe crystals at room temperature has been ob- served., And electrochromism is also reversible during back-switch poling, which is experi- mentally verified and whose mechanism is briefly explained using a microstructure ferroelectric model. In addition, be-cause of the enhancing elcctrochromic effect, different from the undoped LiNbO3 crystals, the coercive filed (21.0 kV / mm or so) measured in LiNbO3: Ru: Fe is lower than than break-down field, thus providing a possible new technique for real- izing the domain-inversion by constant electric field rather than a pulsed one.