Magnetic field effects during deposition on crystal structure and magnetic properties of BaFe₁₂O₁₉ thin films prepared using PLD in the magnetic field (Dynamic aurora PLD)

Abstract

Epitaxial barium hexaferrite [BaFe₁₂O₁₉ (BaM)] thin films were grown on YSZ-buffered Si(001) substrates using a PLD apparatus in which an electromagnet had been installed (dynamic aurora PLD). We examined the effects of applying a magnetic field (up to 2 kG) on the crystal structure and magnetic properties during deposition. The application of the magnetic field during deposition had little effect on the orientation, residual strain, and Curie temperature of BaM thin films. However, the crystallinity and saturation magnetization of the films were lowered. Possible reasons for the lowering of saturation magnetization are discussed.