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Structures of K(0.05)Na(0.95)NbO3 (50-300 K) and K(0.30)Na(0.70)NbO3 (100-200 K).

Abstract:

Rietveld refinement using neutron powder diffraction data is reported for the potential lead-free piezoelectric material K(x)Na(1-x)NbO3 (x = 0.05, x = 0.3) at low temperatures. The structures were determined to be of rhombohedral symmetry, space group R3c, with the tilt system a(-)a(-)a(-) for both compositions. It was found that some of the structural parameters differ significantly in the two structures, and particularly the NbO6 octahedral strains as a function of temperature. The 300 K p...

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Publication status:
Published

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Publisher copy:
10.1107/s0108768109011057

Authors


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Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Condensed Matter Physics
Role:
Author
Journal:
Acta crystallographica. Section B, Structural science More from this journal
Volume:
65
Issue:
Pt 3
Pages:
291-299
Publication date:
2009-06-01
DOI:
EISSN:
1600-5740
ISSN:
0108-7681
Language:
English
Keywords:
Pubs id:
pubs:13280
UUID:
uuid:f60a305b-346b-4b29-bdc7-8bfdc911ec08
Local pid:
pubs:13280
Source identifiers:
13280
Deposit date:
2012-12-19

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