Ferroelectric Domains in PbTiO^sub 3^/SrTiO^sub 3^ Superlattices

Polydomain superlattices composed of ferroelectric PbTiO3 and paraelectric SrTiO3 were investigated by means of temperature-dependent X-ray diffraction and electrical measurements. The ferroelectric nanodomains were found to have an almost isotropic distribution of domain wall alignments and to be h...

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Bibliographic Details
Published in:	Ferroelectrics Vol. 433; no. 1; p. 127
Main Authors:	Zubko, P, Jecklin, N, Stucki, N, Lichtensteiger, C, Rispens, G, Triscone, J-M
Format:	Journal Article
Language:	English
Published:	Philadelphia Taylor & Francis Ltd 01-01-2012
Subjects:	Dielectrics Electric fields Ferroelectrics Measurement Temperature
Online Access:	Get full text
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Summary:	Polydomain superlattices composed of ferroelectric PbTiO3 and paraelectric SrTiO3 were investigated by means of temperature-dependent X-ray diffraction and electrical measurements. The ferroelectric nanodomains were found to have an almost isotropic distribution of domain wall alignments and to be highly responsive to applied electric fields, giving rise to large enhancements in the overall dielectric response of the structure. Electrical measurements revealed a dramatic dependence of the dielectric permittivity, tunability, and polarization-voltage characteristics on the superlattice period. For short-period superlattices, double hysteresis loops were observed. [PUBLICATION ABSTRACT]
ISSN:	0015-0193 1563-5112