Surface defects and skyrmions in magnetoelectric bilayers
Danil I. AbdrakhmanovUfa University of Science and Technology, Design of New Materials Laboratory, Ufa, RussiaIldus F. SharafullinUfa University of Science and Technology, Design of New Materials Laboratory, Ufa, RussiaA. R. YuldashevaUfa University of Science and Technology, Design of New Materials Laboratory, Ufa, RussiaA. G. NugumanovUfa University of Science and Technology, Design of New Materials Laboratory, Ufa, RussiaKamol Jorakulovich NurmatovDepartment of Physics, Jizzakh State Pedagogical University, Jizzakh, Uzbekistan
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We study in this paper a model of magnetic film consisting of ferroelectric and magnetic monolayers with various competing interactions. It is shown that the presence of a hole-shaped defect in upper ferroelectric monolayer leads to skyrmions generation in the lower layer in a local region exactly under the defect. Interlayer interaction allows skyrmions stabilization in a wide range of fields. We have studied the influence of magnetoelectric interaction, defect size and Dzyaloshinskii-Moriya interaction on ground state spin configurations in interacting layers with a triangular lattice structure.
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