Substitution Mechanism of Ni:LiTaO3

A new approach to the intrinsic and extrinsic defect subsystems, considering them as one integrated functional system, is developed for complex oxides. The strong interrelation of these subsystems becomes especially apparent when concentrations of both defect classes are comparable. Experimental results on tantalite lithium LiTaO3 doped with nickel, we will verify the reliability of this results by our theory. We focus our attention on the existence of intrinsic defects in the structure cause variations of physico-chemical materials LiTaO3 to determine precisely the substitution mechanism of these compounds for different levels doping of Ni.