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A novel, layered phase in Ti-rich SrTiO3 epitaxial thin films.

  • Author(s): Lee, Sungki
  • Damodaran, Anoop R
  • Gorai, Prashun
  • Oh, Nuri
  • Moyer, Jarrett A
  • Kwon, Ji-Hwan
  • Ferdous, Naheed
  • Shah, Amish
  • Chen, Zuhuang
  • Breckenfeld, Eric
  • Mangalam, RVK
  • Braun, Paul V
  • Schiffer, Peter
  • Shim, Moonsub
  • Zuo, Jian-Min
  • Ertekin, Elif
  • Martin, Lane W
  • et al.

Sr2Ti7O14, a new phase, is synthesized by leveraging the innate chemical and thermo-dynamic instabilities in the SrTiO3-TiO2 system and non-equilibrium growth techniques. The chemical composition, epitaxial relationships, and orientation play roles in the formation of this novel layered phase, which, in turn, possesses unusual charge ordering, anti-ferromagnetic ordering, and low, glass-like thermal conductivity.

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