Microstructural and domain effects in epitaxial CoFe2O4 films on MgO with perpendicular magnetic anisotropy

▶ X-ray diffraction and rocking curves indicate films are amongst highest quality in the literature. ▶ Domain structure of CoFe2O4 films on MgO was found to be stripe-like using MFM. ▶ Critical thickness for misfit dislocations estimated and agrees with experiment. ▶ Effect of misfit dislocations on surface morphology explained. ▶ Role of dislocations and antiphase boundaries in domain wall formation and motion explained.