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Title: Structure, Ferroelectricity, and Magnetism in Self‐Assembled BiFeO 3 –CoFe 2 O 4 Nanocomposites on (110)‐LaAlO 3 Substrates

Journal Article · · Advanced Electronic Materials
ORCiD logo [1];  [2];  [2];  [3];  [2]
  1. Department of Materials Science and Engineering Massachusetts Institute of Technology Cambridge MA 02139 USA, Institute for Advanced Materials and Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials South China Normal University Guangzhou 510006 China
  2. Department of Materials Science and Engineering Massachusetts Institute of Technology Cambridge MA 02139 USA
  3. Institute for Advanced Materials and Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials South China Normal University Guangzhou 510006 China

Abstract A strain‐driven BiFeO 3 (BFO) tetragonal to rhombohedral phase transition is demonstrated in self‐assembled BiFeO 3 ‐CoFe 2 O 4 (BFO‐CFO) nanocomposites on LaAlO 3 (110)‐oriented substrates with varying thickness. The CFO forms parallel nanoscale fin‐shaped structures within a BFO matrix. Out‐of‐plane lattice strain from the BFO/CFO interfaces stabilizes the BFO rhombohedral‐like phase. The BFO exhibits a range of ferroelectric textures including stripe domains and centered domain arrangements, and the magnetic anisotropy of CFO shows a thickness‐dependent reorientation.

Sponsoring Organization:
USDOE
Grant/Contract Number:
DE‐SC0001299
OSTI ID:
1510839
Journal Information:
Advanced Electronic Materials, Journal Name: Advanced Electronic Materials Vol. 5 Journal Issue: 7; ISSN 2199-160X
Publisher:
Wiley Blackwell (John Wiley & Sons)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 12 works
Citation information provided by
Web of Science

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