WEB Ion Transport in LiNbO3 - An OverviewTuesday (22.09.2020) 11:20 - 11:35 F: Functional Materials, Surfaces, and Devices 2 Part of:
Lithium niobate (LN) is one of the most technologically important polar metal oxides with an extraordinary combination of ferroelectric, piezoelectric, acoustic, optical as well as ion conducting properties. The self-diffusion of the ionic constituents and the underlying point defects of LN are of high importance for the overall conductivity, structural disorder, stability of defect clusters, ferroelectric domain wall pinning, high temperature stability and optical as well as piezoelectric applications. We present a comprehensive overview of the state-of-the-art knowledge on the diffusion of Li, Nb, and O in LN as investigated in our laboratories during the last years. The experiments were carried out with stable tracers in combination with secondary ion mass spectrometry and neutron reflectometry.