Magnetoelectric effect and types of magnetic ordering in multiferroic films

Z.V. Gareeva, A.K. Zvezdin, G.F. Akhtaryanov

Abstract

Space – modulated structures of cycloidal type in a (111) – oriented bismuth ferrite type multiferroic films have been investigated. It has been shown that spin cycloids with a definite direction of propagation vector are realized in the films which is connected with the presence of surface magnetic anisotropy attributed to magnetoelastic interactions. The influence of magnetic field applied in principal crystal axis direction on the character of magnetic ordering in multiferroic films has been considered. The boundaries of transition of space – modulated structure into homogeneous magnetic state has been determined.

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