Ferroelectricity in single crystal InMnO3

T. Yu, P. Gao, T. Wu, T. A. Tyson, R. Lalancette

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11 Scopus citations

Abstract

Single crystal synthesis, structure, electric polarization, and heat capacity measurements on hexagonal InMnO3 show that this small R ion in the RMnO3 series is ferroelectric (space group P63cm). Structural analysis of this system reveals a high degree of order within the MnO5 polyhedra but significant distortions in the R-O bond distributions compared to the previously studied materials. Point-charge estimates of the electric polarization yield an electrical polarization of ∼7.8 μC/cm2, 26 larger than the well-studied YMnO3 system. This system with enhanced room temperature polarization values may serve as a possible replacement for YMnO3 in device applications.

Original languageEnglish (US)
Article number172901
JournalApplied Physics Letters
Volume102
Issue number17
DOIs
StatePublished - Apr 29 2013

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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