Applied Physics Letters
Feedback | Help | Exit
Applied Physics Letters
Search:
   
 
 
 
Previous Article
Delayed fracture of lead zirconate titanate ferroelectric ceramics under sustained electric field
In this letter, we report on delayed fracture of lead zirconate titanate ceramics with a Zr/Ti ratio of 52/48(PZT-5) ferroelectric ceramics in silicon oil under sustained electric field, and that in s...
Next Article
Voltage drop at interfaces in multilayer ferroelectrics
Based upon a defined surface barrier in ferroelectric multilayers deposited on (100) p-type silicon, Va, which bears a portion of the external electrical voltage, a modified empirical power law I = A(...

Theory of polarization enhancement in epitaxial BaTiO3/SrTiO3 superlattices

Appl. Phys. Lett. 82, 1586 (2003); doi:10.1063/1.1559651

Issue Date: 10 March 2003

You are not logged in to this journal. Log in

J. B. Neaton and K. M. Rabe
Department of Physics and Astronomy, Rutgers University, Piscataway, New Jersey 08855-0849
The spontaneous polarization of epitaxial BaTiO3/SrTiO3 superlattices is studied as a function of composition using first-principles density-functional theory within the local density approximation. With the in-plane lattice parameter fixed to that of bulk SrTiO3, the computed superlattice polarization is enhanced above that of bulk BaTiO3 for superlattices with BaTiO3 fraction larger than 40%. In contrast to their bulk paraelectric character, the SrTiO3 layers are found to be tetragonal and polar, possessing nearly the same polarization as the BaTiO3 layers. General electrostatic arguments elucidate the origin of the polarization in the SrTiO3 layers, with important implications for other nanostructured ferroelectrics. ©2003 American Institute of Physics.
History: Received 22 November 2002; accepted 21 January 2003
Permalink: http://link.aip.org/link/?APPLAB/82/1586/1
BUY THIS ARTICLE   (US$24)
Download HTML Download Sectioned HTML Download PDF (50 kB) View Cart

KEYWORDS and PACS

Keywords
PACS
  • 77.55.+f
    Dielectric thin films
  • 77.84.Dy
    Dielectric, piezoelectric, and ferroelectric niobates, titanates, tantalates, PZT ceramics, etc
  • 77.22.Ej
    Dielectric polarization and depolarization
  • 68.65.Cd
    Superlattices (structure and nonelectronic properties)
  • YEAR: 2003

RELATED DATABASES


To view database links for this article,
you need to log in.
To view database links for this article,
you need to log in.

PUBLICATION DATA

ISSN:
0003-6951 (print)   1077-3118 (online)
Publisher:
AIP is a member of CrossRef AIP

REFERENCES (16)
View in Separate Window/Tab
For access to fully linked references, you need to log in. For access to fully linked references, you need to Log in.
  1. T. Shimuta, O. Nakagawara, T. Makino, S. Arai, H. Tabata, and T. Kawai, J. Appl. Phys. 91, 2290 (2002).
  2. W. Tian, X. Q. Pan, J. H. Haeni, and D. G. Schlom (unpublished).
  3. N. A. Pertsev, A. G. Zembligotov, and A. K. Tagantsev, Phys. Rev. Lett. 80, 1988 (1998).
  4. J. B. Neaton, C.-L. Hsueh, and K. M. Rabe, Mater. Res. Soc. Symp. Proc. 718, 311 (2002).
  5. P. Hohenberg and W. Kohn, Phys. Rev. 136, 864B (1964);
  6. W. Kohn and L. J. Sham, ibid. 140, 1133A (1965).
  7. P. Blöchl, Phys. Rev. B 50, 17953 (1994);
  8. G. Kresse and D. Joubert, ibid. 59, 1758 (1999).
  9. G. Kresse and J. Hafner, Phys. Rev. B 47, R558 (1993).
  10. G. Kresse and J. Furthmüller, Phys. Rev. B 54, 11169 (1996).
  11. D. King-Smith and D. Vanderbilt, Phys. Rev. B 47, 1651 (1993).
  12. P. A. Fleury, J. F. Scott, and J. M. Worlock, Phys. Rev. Lett. 21, 16 (1968).
  13. N. Sai and D. Vanderbilt, Phys. Rev. B 62, 13942 (2000).
  14. J. Shen and Y. Ma, Phys. Rev. B 61, 14279 (2000).
  15. M. Sepliarsky, S. R. Phillpot, D. Wolf, M. G. Stachiotti, and R. L. Migoni, Phys. Rev. B 64, 060101 (2001).
  16. B. Meyer and D. Vanderbilt, Phys. Rev. B 65, 104111 (2002).
  17. J. B. Neaton and K. M. Rabe (unpublished).
  18. N. A. Pertsev, A. K. Tagantsev, and N. Setter, Phys. Rev. B 61, R825 (2000).

CITING ARTICLES
For access to citing articles, you need to log in.
For access to citing articles, you need to Log in.


Copyright © American Institute of Physics