Coexistence of Weak Ferromagnetism and Ferroelectricity in the High Pressure LiNbO_{3}-Type Phase of FeTiO_{3}

T. Varga, A. Kumar, E. Vlahos, S. Denev, M. Park, S. Hong, T. Sanehira, Y. Wang, C. J. Fennie, S. K. Streiffer, X. Ke, P. Schiffer, V. Gopalan, J. F. Mitchell

Research output: Contribution to journalArticle

103 Citations (Scopus)
229 Downloads (Pure)

Abstract

We report the magnetic and electrical characteristics of polycrystalline FeTiO3 synthesized at high pressure that is isostructural with acentric LiNbO3 (LBO). Piezoresponse force microscopy, optical second harmonic generation, and magnetometry demonstrate ferroelectricity at and below room temperature and weak ferromagnetism below ~120??K. These results validate symmetry-based criteria and first-principles calculations of the coexistence of ferroelectricity and weak ferromagnetism in a series of transition metal titanates crystallizing in the LBO structure.
Original languageEnglish
Pages (from-to)47601
Number of pages1
JournalPhysical Review Letters
Volume103
Issue number4
DOIs
Publication statusPublished - 24 Jul 2009

Fingerprint Dive into the research topics of 'Coexistence of Weak Ferromagnetism and Ferroelectricity in the High Pressure LiNbO_{3}-Type Phase of FeTiO_{3}'. Together they form a unique fingerprint.

  • Cite this

    Varga, T., Kumar, A., Vlahos, E., Denev, S., Park, M., Hong, S., Sanehira, T., Wang, Y., Fennie, C. J., Streiffer, S. K., Ke, X., Schiffer, P., Gopalan, V., & Mitchell, J. F. (2009). Coexistence of Weak Ferromagnetism and Ferroelectricity in the High Pressure LiNbO_{3}-Type Phase of FeTiO_{3}. Physical Review Letters, 103(4), 47601. https://doi.org/10.1103/PhysRevLett.103.047601