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Advanced Materials

Epitaxial Stabilization of a New Multiferroic Hexagonal Phase of TbMnO3 Thin Films

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  • This research was financially supported by Creative Research Initiatives (Functionally Integrated Oxide Heterostructure) of MOST/KOSEF. The experiments at PLS were supported by MOST and POSTECH. K. H. K. is supported by MOST through the National Research Laboratory program and KOSEF through CSCMR. J. W. K. and J.-S. C. are supported by Seoul R & BD. Supporting Information is available online from Wiley InterScience or from the author.

Abstract

Multiferroic hexagonal TbMnO3thin films have been epitaxially stabilized on substrates with hexagonal in-plane symmetry by pulsed laser deposition. The hexagonal TbMnO3 films show ferroelectricity below ca. 60 K with a remnant polarization 20 times larger compared to its orthorhombic bulk phase. In addition, these samples show an electric-field-induced antiferroelectric-to-ferroelectric phase transition.

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