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Compositional and Structural Study of a (K0.5Na0.5)NbO3 Single Crystal Prepared by Solid State Crystal Growth

Published online by Cambridge University Press:  27 August 2009

Andreja Benčan ,
Elena Tchernychova ,
Matjaž Godec ,
John Fisher  and
Marija Kosec
Andreja Benčan*
Affiliation:
Electronic Ceramics Department, Jožef Stefan Institute, Jamova c. 38, Ljubljana SI-1000, Slovenia
Elena Tchernychova
Affiliation:
Electronic Ceramics Department, Jožef Stefan Institute, Jamova c. 38, Ljubljana SI-1000, Slovenia
Matjaž Godec
Affiliation:
Institute of Metals and Technology, Lepi pot 11, Ljubljana SI-1000, Slovenia
John Fisher
Affiliation:
Electronic Ceramics Department, Jožef Stefan Institute, Jamova c. 38, Ljubljana SI-1000, Slovenia
Marija Kosec
Affiliation:
Electronic Ceramics Department, Jožef Stefan Institute, Jamova c. 38, Ljubljana SI-1000, Slovenia
*
Corresponding author. E-mail: andreja.bencan@ijs.si
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Abstract

In this work we investigated the chemical composition and structure of (K0.5Na0.5)NbO3 (KNN) single crystals grown by the solid state crystal growth method. The optical, scanning, and transmission electron microscopies were employed for the analysis of the chemical homogeneity and domain structure of the KNN crystal. No compositional inhomogeneities within experimental error were encountered in the KNN single crystals. The domain structure of the KNN single crystal, with a monoclinic unit cell, is composed of large 90° domains of up to 100 μm width, which further consist of smaller 180° domains with widths from 50 to 300 nm.

Keywords

(K,Na)NbO3SEMEBSDEDXSWDXSTEM
Type
Materials Applications
Information
Microscopy and Microanalysis , Volume 15 , Issue 5 , October 2009 , pp. 435 - 440
Copyright
Copyright © Microscopy Society of America 2009

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References

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