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Ferroelectricity in the xAg2Nb4O11–(1−x)Na2Nb4O11 solid solution

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Woodward, David I. and Thomas, Pam A.. (2011) Ferroelectricity in the xAg2Nb4O11–(1−x)Na2Nb4O11 solid solution. Applied Physics Letters, Vol.98 (No.13). Article no. 132904. ISSN 0003-6951

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Official URL: http://dx.doi.org/10.1063/1.3573791

Abstract

Compositions in the (AgxNa1-x)2Nb4O11 solid solution have been prepared by a conventional solid state method. Composites containing Ag2Nb4O11 have been shown to be ferroelectric and the Curie temperature shown to decrease from 149 °C at x = 1 to 62 °C at x = 0.7. Roomtemperature compositions with x ≤ 0.7 are monoclinic, while those with x ≥ 0.8 are rhombohedral with structures consistent with the relevant end-members. At x = 0.75, the structure was mainly rhombohedral but with coexistence of the monoclinic structure, indicating the proximity of a phase boundary.

Item Type:	Journal Article
Subjects:	Q Science > QC Physics
Divisions:	Faculty of Science > Physics
Library of Congress Subject Headings (LCSH):	Solutions, Solid -- Testing, Ferroelectricity -- Testing, Curie temperature -- Testing
Journal or Publication Title:	Applied Physics Letters
Publisher:	American Institute of Physics
ISSN:	0003-6951
Date:	2011
Volume:	Vol.98
Number:	No.13
Page Range:	Article no. 132904
Identification Number:	10.1063/1.3573791
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access
Funder:	Advantage West Midlands (AWM), Birmingham Science City
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URI:	http://wrap.warwick.ac.uk/id/eprint/4503