Mechanism of low thermal expansion in the cation-ordered Nasicon structure

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David A. Woodcock, Philip Lightfoot, David A. Woodcock and Clemens Ritter


Abstract

Variable temperature neutron powder diffraction data are used to pinpoint the mechanism of low thermal expansivity in the Nasicon-related material Sr0.5Ti2(PO4)3; this behaviour is contrasted with that of the parent phase NaTi2(PO4)3.


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