Special features of restructuring of the defect structure of La2Zr2O7 and YSZ films in a rotating magnetic field

Abstract

The effect of magnetic-structure processing in a rotating magnetic field on the structure and texture of a layer of yttrium-stabilized zirconium oxide ZrO₂ (YSZ) obtained by the ABAD method on a steel tape substrate is studied. The effect of magnetic preprocessing of the YSZ surface layer on the structure and texture of the epitaxial layer of lanthanum zirconate La₂Zr₂O₇ (LZO) grown by means of liquid-phase polymer-assisted nanoparticle deposition (PAND) on the YSZ layer is also considered. We reveal the development of the structure and texture of the YSZ layer after magnetic-structure processing, which has a positive effect on the epitaxial growth of the deposited LZO layer and improves its structure and texture. A TEM image of the cross section of the LZO epitaxial layer, grown on the YSZ layer after magnetic-structure processing, showed the presence of small (2–5 nm) closed-type structure pores. The out-of-plane texture of the LZO layer grown on the YSZ layer after magnetic-structure processing significantly improves (Δω = 2.65°) compared with the texture of the LZO layer grown on the surface of the YSZ layer without magnetic-structure processing (Δω = 0.85°).