Artículos de revistas
Hole-electron electrical coupling in photorefractive materials
Registro en:
Applied Physics Letters. Amer Inst Physics, v. 95, n. 24, 2009.
0003-6951
WOS:000272954900019
10.1063/1.3272681
Autor
de Oliveira, I
Montenegro, R
Frejlich, J
Institución
Resumen
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. 95 24