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 [BaFe 12 O 19 (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.

Possibility and Optimized Conditions for Spontaneous Superlattice Formation in Stabilized Zirconia Thin Films Grown Under In Situ Magnetic Field

“…The experimental setup for Dynamic Aurora PLD can be found in some of our previous reports (Wakiya et al 2007;Kubo et al 2011;Suzuki et al 2013, Wakiya et al 2016, Debnath et al 2017, Debnath et al 2018, Lizuka et al 2023. The direction of the induced magnetic field is parallel to the direction from the target to the substrate.…”

“…It has many manufacturing steps which is the barrier to practical uses on a large scale. In our laboratory we developed a specially designed pulsed laser deposition (PLD) technique, through which we can apply a magnetic field during thin film growth, named Dynamic Aurora PLD (Wakiya et al 2007;Kubo et al 2011;Suzuki et al 2013;Wakiya et al 2016, Debnath et al 2017Wakiya et al 2017, Debnath et al 2018Lizuka et al 2023). Spontaneous superlattice structure is formed in the case of perovskite SrTiO 3 (STO) system by the application of in situ magnetic field during film growth (Wakiya et al 2016).…”