Nanoscale stabilization of the scheelite-type structure in La0.99Ca0.01NbO4 thin films

Abstract

In this paper we report on the deposition of La_0.99Ca_0.01NbO₄ thin films with scheelite-type crystal structure. Thanks to the film's nanostructure, we were able to stabilize the tetragonal scheelite-type structure phase at room temperature, which involves a full removal of the fergusonite–scheelite phase transition.