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

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Delicate balance between ferroelectricity and antiferroelectricity in hexagonal InMnO3

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Title
Delicate balance between ferroelectricity and antiferroelectricity in hexagonal InMnO3
Author
Huang, F-TWang, XOh, Yoon SeokKurushima, KMori, SHoribe, YCheong, S-W
Keywords
TRANSITION; YMNO3
Issue Date
2013-05
Publisher
AMER PHYSICAL SOC
Citation
PHYSICAL REVIEW B, v.87, no.18, pp.184109 -
Abstract
The presence of ferroelectricity in hexagonal InMnO3 has been highly under debate. The results of our comprehensive experiments of low-temperature (T) polarization, transmission electron microscopy, and high-angle annular dark-field scanning TEM on well-controlled InMnO3 reveal that the ground state is ferroelectric with P63cm symmetry, but a nonferroelectric P3̄c1 state exists at high T and can be quenched to room temperature. We found that the competing ferroelectric and antiferroelectric phases coexist in mesoscopic scales and can be deliberately controlled by varying thermal treatments. © 2013 American Physical Society.
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DOI
10.1103/PhysRevB.87.184109
ISSN
2469-9950
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PHY_Journal Papers
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