Improved epitaxial growth and multiferroic properties of Bi₃Fe₂Mn₂O_x using CeO₂ re-seeding layers.

ABSTRACT: In ferroelectric and multiferroic-based devices, it is often necessary to grow thicker films for enhanced properties. For certain phases that rely on substrate strain for growth, such thicker film growths beyond the typical thin film regime could be challenging. As an example, the Bi₃Fe₂Mn₂O_x (BFMO) Aurivillius supercell (SC) phase possesses highly desirable multiferroic (i.e., ferromagnetic and ferroelectric) properties and a unique layered structure but relies heavily on substrate strain. Beyond the thin film regime (approximately 100 nm), a less desirable pseudo-cubic (PC) phase is formed. In this work, a novel heterogeneous re-seeding method is applied to maintain the strained growth in this SC phase beyond the thin film regime,

SUBMITTER: Barnard JP 

PROVIDER: S-EPMC10597562 | biostudies-literature | 2023 Oct

REPOSITORIES: biostudies-literature