Аннотация:This paper is a survey of recent author’s results obtained by the authors. It shows that manyoxides can be obtained as thin epitaxial films in spite of their thermodynamic instability in bulkstate at the film deposition conditions. This new synthetic approach, named epitaxialstabilization, is based on free energy gain due to structural coherence at the film/substrateinterface. The epitaxial stabilization can be effectively used to enlarge the spectrum of newfunctional materials.