Correlation between crystal structure and magnetism in PLD grown epitaxial films of ε-Fe₂O₃ on GaN.

ABSTRACT: In the present paper we discuss correlations between crystal structure and magnetic properties of epitaxial ε-Fe₂O₃ films grown on GaN. The large magnetocrystalline anisotropy and room temperature multiferroic properties of this exotic iron oxide polymorph, make it a perspective material for the development of low power consumption magnetic media storage devices. Extending our recent progress in PLD growth of ε-Fe₂O₃ on the surface of technologically important nitride semiconductors, we apply reciprocal space tomography by electron and x-ray diffraction to investigate the break of crystallographic symmetry occurring at the oxide-nitride interface resulting in the appearance of anisotropic crystallographic disorder in the sub-100 nm ε-Fe₂

SUBMITTER: Suturin SM 

PROVIDER: S-EPMC8856044 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature