DIMENSIONAL EFFECTS ON THE STRUCTURE AND MAGNETIC PROPERTIES OF GdMnO3 FILMS

Abstract

Recent advances in thin films growth techniques have enabled to prepare a large variety of heterostructures consisting of materials with different crystal structures and physical properties. In particular, the research on the application of magnetoelectric materials as barriers and interfaces for spintronic has known a very large increase. Moreover, the low dimensionality and size required for such devices can yield drastic changes onto both structure and physical properties of the bulk materials, largely due to substrate-induced structural deformations. This work was focused in the study of high quality GdMnO3 thin films, obtained by a chemical solution method onto oriented Pt substrates. Alterations regarding to lattice dynamic and magnetic response of the films compared to both ceramics and single crystals ascertained through Raman and magnetic studies show that the behaviour of the as-prepared films can be understood by assuming a continuously changing of the stress state in the fi