Spin-coated ferroelectric SrBi2Nb2O9 thin films

The electrical and microstructural properties of pure strontium bismuth niobate (SBN) prepared by spin coating have been examined. Randomly ordered films have larger dielectric constants and remanent polarization values (maximum of Pr=12.5 μC/cm2) than do c-axis oriented films. The heretofore unexpl...

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Bibliographic Details
Published in:	Applied physics letters Vol. 73; no. 1; pp. 126 - 128
Main Authors:	Watanabe, Koji, Tanaka, Masahiro, Sumitomo, Eiko, Katori, Kenji, Yagi, Hajime, Scott, J. F.
Format:	Journal Article
Language:	English
Published:	06-07-1998
Online Access:	Get full text
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Summary:	The electrical and microstructural properties of pure strontium bismuth niobate (SBN) prepared by spin coating have been examined. Randomly ordered films have larger dielectric constants and remanent polarization values (maximum of Pr=12.5 μC/cm2) than do c-axis oriented films. The heretofore unexplained dependences of Pr upon Sr content in SBN and SBT is shown to be entirely due to the sensitivity of grain orientation to Sr content in SBN. Vertical shifts (P axis) in the hysteresis curves are eliminated via ozone anneals.
ISSN:	0003-6951 1077-3118
DOI:	10.1063/1.121705