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- Oh, Yoon Seok
- Laboratory for Strong Correlation in Quantum Materials
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Delicate balance between ferroelectricity and antiferroelectricity in hexagonal InMnO3
- Author(s)
- Huang, F-T, Wang, X, Oh, Yoon Seok, Kurushima, K, Mori, S, Horibe, Y, Cheong, S-W
- Issued Date
- 2013-05
- 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.
- Publisher
- AMER PHYSICAL SOC
- ISSN
- 2469-9950
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