Realizing strain enhanced dielectric properties in BaTiO3 films by liquid phase assisted growth

David T. Harris, Matthew J. Burch, Jon F. Ihlefeld, Peter G. Lam, Jing Li, Elizabeth C. Dickey, Jon-Paul Maria

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

The addition of a liquid-forming flux to barium titanate thin films promotes densification and grain growth, improves nonlinear dielectric properties, and allows residual strain to be sustained in polycrystalline films without cracking at thicknesses relevant to device fabrication. Relative tuning, an excellent indicator of crystalline quality and an important material property for tunable microwave devices, increases from 20% to 70%. Films exhibit 0.15% residual differential thermal expansion mismatch strain, resulting in a shift to the paraelectric-ferroelectric phase transition of 50°C. This result is in excellent agreement with theory, demonstrating the ability to tune ferroic transitions without epitaxial approaches.

Original languageEnglish (US)
Article number012904
JournalApplied Physics Letters
Volume103
Issue number1
DOIs
StatePublished - Jul 1 2013

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dielectric properties
liquid phases
densification
barium
thermal expansion
tuning
microwaves
fabrication
shift
liquids
thin films

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

Cite this

Harris, David T. ; Burch, Matthew J. ; Ihlefeld, Jon F. ; Lam, Peter G. ; Li, Jing ; Dickey, Elizabeth C. ; Maria, Jon-Paul. / Realizing strain enhanced dielectric properties in BaTiO3 films by liquid phase assisted growth. In: Applied Physics Letters. 2013 ; Vol. 103, No. 1.
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Realizing strain enhanced dielectric properties in BaTiO3 films by liquid phase assisted growth. / Harris, David T.; Burch, Matthew J.; Ihlefeld, Jon F.; Lam, Peter G.; Li, Jing; Dickey, Elizabeth C.; Maria, Jon-Paul.

In: Applied Physics Letters, Vol. 103, No. 1, 012904, 01.07.2013.

Research output: Contribution to journalArticle

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