Abstract
Topmost structure of a z-cut (001) single crystal of LiNbO 3 has been examined and simulated by Coaxial Impact Collision Ion Scattering Spectroscopy (CAICISS). The measured and the simulated spectra of polar angle dependency of Nb signal intensities for the as-supplied sample were consistent with each other at the [210] azimuthal directional face which was composed of metals (Li and Nb), but inconsistent at the [100] azimuthal directional face, which was composed of metals and oxygen. We suspected that the O-terminated model represented the right model, but the simulation of two directional displaced models was insufficient to express the measured spectrum.
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