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

Tahta Amrillah, Yu Xun Chen, My Ngoc Duong, Wildan Abdussalam, Firman Mangasa Simanjuntak, Chia Hao Chen, Ying Hao Chu, Jenh Yih Juang*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

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.

Original languageEnglish
Pages (from-to)435-440
Number of pages6
JournalCrystEngComm
Volume22
Issue number3
DOIs
StatePublished - 21 Jan 2020

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