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Physics of the Solid State

, Volume 51, Issue 5, pp 1025–1032 | Cite as

Phenomenological description of thin SrTiO3 films

  • V. B. ShirokovEmail author
  • Yu. I. Yuzyuk
  • V. V. Lemanov
Lattice Dynamics and Phase Transitions

Abstract

The constants of the phenomenological potential of SrTiO3 are calculated allowing for recent experimental data. The α11, α12, and t 44 constants are refined by more than one order of magnitude as compared to the earlier values. The T-P phase diagrams for the case of the uniaxial [001] and [110] loading are calculated. The temperature vs. misfit-strain phase diagram for a thin SrTiO3 film is constructed, in which pure ferroelectric phases exist at low temperatures.

PACS numbers

64.60.Kw 64.70.Kb 77.65.Ly 77.80.Bh 

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Copyright information

© Pleiades Publishing, Ltd. 2009

Authors and Affiliations

  • V. B. Shirokov
    • 1
    Email author
  • Yu. I. Yuzyuk
    • 1
  • V. V. Lemanov
    • 2
  1. 1.Southern Federal UniversityRostov-on-DonRussia
  2. 2.Ioffe Physicotechnical InstituteRussian Academy of SciencesSt. PetersburgRussia

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