Strain-induced Ferroelectricity in Ruddlesden-Popper Sr(n+1)Ti(n)O(3n+1) Phases

ORAL

Abstract

We performed broadband in-plane dielectric measurements of thin-film Sr(n+1)Ti(n)O(3n+1)(n = 2, 3, 4, 5, 6) Ruddlesden-Popper homologous series as a function of temperature and bias field. The effect of strain on these materials is interesting, because SrTiO3, the n =~$\infty $ series member, exhibits ferroelectricity at room temperature when strained on~DyScO3 substrates. Here, we explore the effect of strain on the dielectric properties of~Sr(n+1)Ti(n)O(3n+1)(n = 2, 3, 4, 5, 6) thin-films on~LSAT, DyScO3 and GdScO3.

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Authors

  • N. Orloff

    NIST

  • C. Lee

    Penn State Univ., Cornell University

  • Craig Fennie

    Cornell, School of Applied and Engineering Physics, Department of Applied and Engineering Physics, Cornell University, Ithaca, New York, School of Applied and Engineering Physics, Cornell University

  • X. X. Xi

    Pennsylvania State University

  • I. Takeuchi

    University of Maryland, Department of Materials Science and Engineering and Center for Superconductivity Research, University of Maryland, College Park, MD 20742, Univ. of Maryland

  • J. Booth

    NIST

  • Darrell Schlom

    Cornell University, Cornel University, Department of Materials Science and Engineering, Pennsylvania State University, University Park, Pennsylvania, Department of Materials Science and Engineering, Cornell University