Reducing Leakage Current and Enhancing Polarization in Multiferroic 3D Super-nanocomposites by Microstructure Engineering

Authors

Erik Enriquez, The University of Texas Rio Grande Valley
Ping Lu
Leigang Li
Bruce Zhang
Haiyan Wang
Quanxi Jia
Aiping Chen

Document Type

Article

Publication Date

7-15-2022

Abstract

Multiferroic materials have generated great interest due to their potential as functional device materials. Nanocomposites have been increasingly used to design and generate new functionalities by pairing dissimilar ferroic materials, though the combination often introduces new complexity and challenges unforeseeable in single-phase counterparts. The recently developed approaches to fabricate 3D super-nanocomposites (3D‐sNC) open new avenues to control and enhance functional properties. In this work, we develop a new 3D‐sNC with CoFe2O4 (CFO) short nanopillar arrays embedded in BaTiO3 (BTO) film matrix via microstructure engineering by alternatively depositing BTO:CFO vertically-aligned nanocomposite layers and single-phase BTO layers. This microstructure engineering method allows encapsulating the relative conducting CFO phase by the insulating BTO phase, which suppress the leakage current and enhance the polarization. Our results demonstrate that microstructure engineering in 3D‐sNC offers a new bottom–up method of fabricating advanced nanostructures with a wide range of possible configurations for applications where the functional properties need to be systematically modified.

Comments

© 2022 The Author(s). Published by IOP Publishing Ltd.

Recommended Citation

Erik Enriquez et al 2022 Nanotechnology 33 405604. https://doi.org/10.1088/1361-6528/ac5f98

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

Publication Title

Nanotechnology

DOI

10.1088/1361-6528/ac5f98