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Electrochromic effect in domain-inversion process in LiNbO_3: Ru: Fe crystals

机译:LiNbO_3:Ru:Fe晶体畴反转过程中的电致变色效应

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摘要

A reversible electrochromic effect accompanying domain-inversion during the electrical poling process in LiNbO_3: 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 elcctrochromic effect, different from the undoped LiNbO_3 crystals, the coercive filed (21.0 kV/mm or so) measured in LiNbO_3: 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.
机译:在室温下,在LiNbO_3:Ru:Fe晶体的电极化过程中,伴随着畴反转的可逆电致变色效应已被观察到。在电极区域,电致变色和畴反转交替发生,并且电致变色在反向开关极化期间也是可逆的,这已通过实验验证,并使用微结构铁电模型简要解释了其机理。另外,由于增强了电致变色作用,与未掺杂的LiNbO_3晶体不同,在LiNbO_3:Ru:Fe中测得的矫顽场(21.0 kV / mm左右)低于其击穿场,从而为实现该技术提供了可能的新技术。通过恒定电场而不是脉冲电场进行域反转。

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