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Influence of strain on the dielectric behavior of (BaxSr1-x)Ti1+yO3+z thin films grown by LS-MOCVD on Pt/SiO2/Si

  • S. K. Streiffer
  • , C. Basceri
  • , C. B. Parker
  • , S. E. Lash
  • , J. Christman
  • , H. Maiwa
  • , Angus I. Kingon

Research output: Contribution to conferencePaperpeer-review

2 Scopus citations

Abstract

The strain state and its coupling to dielectric behavior have been investigated for {100} BST thin films deposited on Pt/SiO2/Si at 640 °C. It is estimated from x-ray diffraction that the in-plane biaxial strain is approximately 0.7%. We postulate that this is of sufficient magnitude to confine any spontaneous polarization to the plane of the film. The thickness-corrected dielectric behavior perpendicular to the substrate for these samples shows evidence of coupling to such an in-plane phase transition at approximately 390 K, as manifested by deviation from Curie-Weiss-like behavior at this temperature.

Original languageEnglish
Pages31-34
Number of pages4
StatePublished - 1998
Externally publishedYes
EventProceedings of the 1998 11th IEEE International Symposium on Appliations of Ferroelectrics (ISAF-XI) - Montreaux, Switz
Duration: Aug 24 1998Aug 27 1998

Conference

ConferenceProceedings of the 1998 11th IEEE International Symposium on Appliations of Ferroelectrics (ISAF-XI)
CityMontreaux, Switz
Period08/24/9808/27/98

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