Optics and Photonics Society of Iran

Magnetic response of the thin films is strongly correlated to the substrate structure and deposition conditions. Meanwhile, the strain effect can be arising from structural constant difference of the layer and substrate or structural surface shape of the substrate. In this paper, magnetic behavior of strain induced by surface shape of the same polymeric colloidal crystal, on the bismuth ferrite, cobalt ferrite and Fe₈₀B₂₀ thin films is studied. Another bismuth ferrite thin film is deposited on glass substrate right the same as colloidal crystal. By employing Faraday rotation measurement set up the relation of structure of colloidal crystal and magnetic changes on bismuth ferrite changes is described. Faraday rotation results of cobalt ferrite and Fe₈₀B₂₀ deposited on colloidal crystal, show the substrate effect on magnetic behavior of these thin films.