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Ferroelectric Properties of Multiferroic Hexagonal ErMnO3 Thin Films
- Issue Date
- Aug-2009
- Publisher
- KOREAN PHYSICAL SOC
- Keywords
- ErMnO3; Ferroelectric; Thin film
- Citation
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.55, no.2, pp.841 - 845
- Journal Title
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY
- Volume
- 55
- Number
- 2
- Start Page
- 841
- End Page
- 845
- ISSN
- 0374-4884
- Abstract
- The authors investigated the ferroelectric properties of epitaxial thin films of hexagonal ErMnO3 fabricated on Pt(111)/Al2O3(0001) substrates. The ferroelectric characteristics were observed with a reasonable remnant polarization value (3.0 mu C/cm(2) at 160 K). However, the films exhibited an unusual antiferroelectric-like behavior with a temperature- and an electric-field-dependence. The coercive field showed an abrupt increase below the antiferromagneitc ordering temperature, indicating the possibility of interference between ferroelectric domains and antiferromagnetic domains.
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Related Researcher
- Chung, Jin Seok
- College of Natural Sciences (Department of Physics)