By performing epitaxial growth on a semiconductor substrate while keeping
conformity, a membrane multi-layer structure showing increased
polarization is provided.A membrane multi-layer structure comprising a
thin layer composed of zirconium oxide as the main component for allowing
epitaxial growth, a thin layer having a simple perovskite structure,
showing in-plane rotation by 45.degree. of the (001) plane to the thin
layer composed of zirconium oxide as the main component and performing
epitaxial growth, and an intermediate layer provided between the thin
layer composed of zirconium oxide as the main component and the thin
layer having a simple perovskite structure.