Skip to main content
    • Aa
    • Aa

Growth and Characterization Studies of ABi2ta2o9 (A = Ba, Sr and Ca) Ferroelectric Thin Films

  • R. R. Das (a1), W. Opérez (a1), R. J. Rodríguez (a1), P. S. Dobal (a1), R. S. Katiyar (a1) and S.B. Krupanidhi (a2)...

Thin films of ferroelectric ABi2Ta2O9 bismuth-layered structure, where A = Ba, Sr and Ca, were prepared by pulsed laser deposition technique on Pt/TiO2/SiO2/Si(100) substrates. The influence of substrate temperature between 500 to 750°C, and oxygen partial pressure 100-300 mTorr, on the structural and electrical properties of the films was investigated. The films deposited above 650°C substrate temperature showed complete Aurivillius layered structure. Films annealed at 750°C for 1h in oxygen atmosphere have exhibited better electrical properties. Atomic force microscopy study of surface topography shows that the films grown at lower temperature has smaller grains and higher surface roughness. This paper discusses the pronounced influence of A-site cation substitution on the structural and ferroelectric properties with the aid of Raman spectroscopy, X-ray diffraction and electrical properties. The degradation of ferroelectric properties with Ba and Ca substitution at A-sites is attributed to the higher structural distortion caused by changing tolerance factor. A systematic proportionate variation of coercive field is attributed to electronegativity difference of A-site cations.

Linked references
Hide All

This list contains references from the content that can be linked to their source. For a full set of references and notes please see the PDF or HTML where available.

2. J. F. Scott and C.A. Paz de Araujo , Science 246, 1400 (1989).

3. S.B. Desu and D.P. Vijaya , Mat. Sci. Eng. B 32, 75 (1995).

4. E.C. Subbarao , J. Phys. Chem. Solids, 23, 665 (1962).

5. J. Lee , H. Kim , H. Kwon and Y. Jeong , Appl. Phys. Lett., 73, 166 (1998).

10. Y. Shimakawa , Y. Kubo , Y. Nakagawa , S. Goto , T. Kamiyama , H. Asano and F. Izumi , Phys. Rev., B 61, 6559 (2000).

11. N. Nukaga , K. Ishikawa and H. Funakubo , Jpn. J. Appl. Phys., 38, 5428 (1999).

Recommend this journal

Email your librarian or administrator to recommend adding this journal to your organisation's collection.

MRS Online Proceedings Library (OPL)
  • ISSN: -
  • EISSN: 1946-4274
  • URL: /core/journals/mrs-online-proceedings-library-archive
Please enter your name
Please enter a valid email address
Who would you like to send this to? *


Full text views

Total number of HTML views: 0
Total number of PDF views: 1 *
Loading metrics...

Abstract views

Total abstract views: 42 *
Loading metrics...

* Views captured on Cambridge Core between September 2016 - 25th June 2017. This data will be updated every 24 hours.