Electrical conductivity and asymmetric material changes upon irradiation of Mg-doped lithium niobate crystals with low-mass, high-energy ions

Abstract

Light-induced domain reversal in doped lithium niobate crystals J. Appl. Phys. 105, 043105 (2009); 10.1063/1.3079478 Domain reversal properties and refractive index changes of magnesium doped lithium niobate upon ion exposure J. Appl. Phys. 103, 034104 (2008); 10.1063/1.2838207 Ultraviolet light-assisted domain inversion in magnesium-doped lithium niobate crystals J. Appl. Phys. 98, 064104 (2005); 10.1063/1.2058184 Determination of homogeneity of pure and doped lithium niobate by second harmonic generation temperature phase matchingRadiation damage in magnesium-doped lithium niobate crystals, created by low-mass, high-energy ions which have transmitted the entire crystal thickness, leads to an enhanced electrical dark conductivity as well as an enhanced photoconductivity. Experimental results on the electrical properties after ion exposure are given, and an asymmetric dependence of the conductivity as well as refractive index changes on the irradiation geometry with respect to the ferroelectric axis is revealed.

Fabrication and Analysis of Ion-Engineered ZnO Device Structures for Optoelectronic Applications

“…It is evident from the IV curves of the P + implanted device that the current increases with the increase in temperature. The activation energy (Ea) required for carrier conduction was determined by linear approximation of "( 4)" [40].…”