Effect of Oxidating Treatment on the Electrical Properties of Reduced LiNbO3 Crystals

Аннотация

The effect oxidizing annealing has on the electrical properties of nominally pure congruently grown LiNbO₃ crystals is investigated via impedance spectroscopy. A set of samples is preliminarily reduced in saturated D₂O or H₂O vapor. It is shown that reducing annealing in saturated water vapor at T = 773 K results in partial deprotonation of LiNbO₃ crystals. It is assumed that such annealing does not change the charge state of impurity ions with variable valence.