Hole-electron electrical coupling in photorefractive materials

We describe an improved mathematical model for photorefractive materials exhibiting hole-electron competition where the constants accounting for electrical coupling between holes and electrons are independently adjusted for each one of them. Experimental results from photorefractive titanosillenite...

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Access type:openAccess
Publication Date:2009
Main Author: de Oliveira, I
Other Authors: Montenegro, R, Frejlich, J
Document type: Article
Language:eng
Published: Melville
Amer Inst Physics
Portuguese subjects:
Online Access:http://www.repositorio.unicamp.br/jspui/handle/REPOSIP/69591
http://www.repositorio.unicamp.br/handle/REPOSIP/69591
http://repositorio.unicamp.br/jspui/handle/REPOSIP/69591
Citation:Applied Physics Letters. Amer Inst Physics, v. 95, n. 24, 2009.
Portuguese abstract:We describe an improved mathematical model for photorefractive materials exhibiting hole-electron competition where the constants accounting for electrical coupling between holes and electrons are independently adjusted for each one of them. Experimental results from photorefractive titanosillenite crystals with hole-electron competition, and particularly from a vanadium doped sample, are shown to be better described by this modified model than by the classical one already reported in the literature.