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Effects of pillar size modulation on the magneto-structural coupling in self-assembled BiFeO3–CoFe2O4 heteroepitaxy

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Abstract

The magneto-structural coupling of BiFeO3 (BFO)–CoFe2O4 (CFO)/LaAlO3 (LAO) heteroepitaxy with various lateral sizes of CFO pillars embedded in a BFO matrix was investigated. A structural phase transformation of the BFO matrix was observed when the pillar size of CFO was increased to exceed 200 nm. Such structural transformation led to modification of magneto-elastic coupling behavior and magnetic anisotropy in the BFO–CFO/LAO system. The flexibility of tuning the pillar size of CFO, and hence, the strain and interfacial effect on the multiferroic system have significant application implications in these functional oxide nanocomposites.

Graphical abstract: Effects of pillar size modulation on the magneto-structural coupling in self-assembled BiFeO3–CoFe2O4 heteroepitaxy

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Article information


Submitted
06 Oct 2019
Accepted
12 Dec 2019
First published
03 Jan 2020

CrystEngComm, 2020, Advance Article
Article type
Communication

Effects of pillar size modulation on the magneto-structural coupling in self-assembled BiFeO3–CoFe2O4 heteroepitaxy

T. Amrillah, Y. Chen, M. N. Duong, W. Abdussalam, F. M. Simanjuntak, C. Chen, Y. Chu and J. Juang, CrystEngComm, 2020, Advance Article , DOI: 10.1039/C9CE01573F

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