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Tailoring the Properties of Artificially Layered Ferroelectric Superlattices
Author(s) -
Dawber M.,
Stucki N.,
Lichtensteiger C.,
Gariglio S.,
Ghosez P.,
Triscone J.M.
Publication year - 2007
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200700965
Subject(s) - superlattice , materials science , ferroelectricity , condensed matter physics , polarization (electrochemistry) , optoelectronics , nanotechnology , dielectric , physics , chemistry
The polarization of PbTiO 3 /SrTiO 3 superlattices is experimentally tuned from 0–60 μC/cm –2 and the transition temperature from room temperature to 1000 K while maintaining a perfect crystal structure and low leakage currents (see figure). A simple model based on Landau theory is developed as a guide for the straightforward production of samples with ferroelectric properties designed for particular applications.