Ferroelectricity in SrTiO3 Ceramics Induced by Pr Doping


Ferroelectricity was induced in SrTiO3 by the Sr exchange for Pr ion in the A site of the perovskite ABO3-type structure. X-ray diffraction patterns show single phase crystalline structure in the SrxPr1−xTiO3 compound for x=0, 0.025, 0.050, 0.075 and 0.1 compositions. Rietveld refinement shows that the unit cell volume decreases with the increasing of Pr content as a consequence of the difference between Sr/Pr ionic radii. Furthermore, high-temperature differential thermoanalysis (DTA) displays a small anomaly at about 118 0C which is probably due to the Pr ion producing a distortion of the perovskite structure via an off-center site. This deformation in the lattice induces a measurable polar behavior of the solid solution. Dielectric permittivity (ɛ vs T) measurements display a well defined peak at about 238 0C. Furthermore, a well defined hysteresis loop at 30 0C with a remnant polarization that tends to decrease with increasing Pr concentration is observed. Both experimental results confirm the ferroelectric state induced by the Pr ion.

This is a preview of subscription content, access via your institution.


  1. 1.

    K. A. Müller, H. Burkard, Phys. Rev. B 19, 3593 (1979).

    Article  Google Scholar 

  2. 2.

    P. A. Fleury, J. F. Scott, J. M. Worlock, Phys. Rev. Lett. 21, 16 (1968).

    CAS  Article  Google Scholar 

  3. 3.

    H. Uwe, T. Sakudo, Phys. Rev. B 13, 271 (1976).

    CAS  Article  Google Scholar 

  4. 4.

    J. G. Bednorz, K. A. Muller, Phys. Rev. Lett. 52, 2289 (1984).

    CAS  Article  Google Scholar 

  5. 5.

    M. J. Lancaster, J. Powell, A. Porch, Supercond. Sci. Technol. 11, 1323 (1998).

    CAS  Article  Google Scholar 

  6. 6.

    B. A. Hunter: Rietica IUCR Powder Diffraction 22, 21 (1997).

    Google Scholar 

  7. 7.

    R. D. Shannon, Acta crystallogr. Secc. A 32, 751 (1976)

    Article  Google Scholar 

  8. 8.

    Y. Noguchi, M. Miyayama, T. Kudo, Phys. Rev. B 63, 214102 (1995).

    Article  Google Scholar 

  9. 9.

    J. H. Haeni, P. Irvin, W. Chang, R. Uecker, P. Reiche, Y. L. Li, S. Choudhury, W. Tian, M. E. Hawley, B. Craigo, A. K. Tagantsev, X. Q. Pan, S. K. Streiffer, L. Q. Chen, S. W. Kirchoefer, J. Levy, D. G. Schlom, Nature 430, 758 (2004).

    CAS  Article  Google Scholar 

Download references


The authors thank to CONACyT Project No. 40604- F and DGAPA-UNAM through and IN100903 and IN116703. We thank, E. Aparicio, M. Sainz, J. Peralta and P. Casillas for their technical help.

Author information



Corresponding author

Correspondence to A. Durán.

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Durán, A., Martínez, E., Mata, J. et al. Ferroelectricity in SrTiO3 Ceramics Induced by Pr Doping. MRS Online Proceedings Library 848, 411–416 (2004). https://doi.org/10.1557/PROC-848-FF9.19

Download citation