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

Tian Guo | Zendy; Ojha Shuchi | Zendy; Ning Shuai | Zendy; Gao Xingsen | Zendy; Ross Caroline A. | Zendy

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

Author(s) -

Tian Guo,

Ojha Shuchi,

Ning Shuai,

Gao Xingsen,

Ross Caroline A.

Publication year - 2019

Publication title -

advanced electronic materials

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.25

H-Index - 56

ISSN - 2199-160X

DOI - 10.1002/aelm.201900012

Subject(s) - materials science , tetragonal crystal system , ferroelectricity , condensed matter physics , nanocomposite , magnetism , multiferroics , bismuth ferrite , nanoscopic scale , nanotechnology , crystallography , optoelectronics , crystal structure , chemistry , physics , dielectric

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.

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