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Oh, Yoon Seok
Laboratory for Strong Correlation in Quantum Materials
Research Interests
  • Multiferroic
  • Ferroelectric
  • Quantum Magnetism

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Quantitative determination of anisotropic magnetoelectric coupling in BiFeO3-CoFe2O4 nanostructures

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Title
Quantitative determination of anisotropic magnetoelectric coupling in BiFeO3-CoFe2O4 nanostructures
Author
Oh, Yoon SeokCrane, SZheng, HChu, YHRamesh, RKim, Kee Hoon
Issue Date
2010-08
Publisher
AMER INST PHYSICS
Citation
APPLIED PHYSICS LETTERS, v.97, no.5, pp.052902
Abstract
The transverse and longitudinal magnetoelectric susceptibilities (MES) were quantitatively determined for (001) heteroepitaxial BiFeO3-CoFe2O4 nanostructures. Both of these MES values were sharply enhanced at magnetic fields below 6 kOe and revealed asymmetric line shapes with respect to the dc magnetic field, demonstrating the strain-induced magnetoelectric effect. The maximum transverse MES, which reached as high as similar to 60 mV/cm Oe, was about five times larger than the longitudinal MES. This observation signifies that transverse magnetostriction of the CoFe2O4 nanopillars is enhanced more than the bulk value due to preferred magnetic domain alignment along the [001] direction coming from compressive, heteroepitaxial strain. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3475420]
URI
https://scholarworks.unist.ac.kr/handle/201301/12060
URL
http://scitation.aip.org/content/aip/journal/apl/97/5/10.1063/1.3475420
DOI
10.1063/1.3475420
ISSN
0003-6951
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