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Issue 20, 2018
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Strong negative thermal expansion in the hexagonal polymorph of ScF3

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Abstract

A new hexagonal polymorph of scandium fluoride (ScF3) has been synthesized and thoroughly characterized. The new phase displays two types of negative thermal expansion in a wide temperature range at normal pressure: a relatively weak isotropic negative thermal expansion at low temperatures and a strong anisotropic negative thermal expansion above 500 K. The thermal behavior is explained in part by a model of static structure distortions.

Graphical abstract: Strong negative thermal expansion in the hexagonal polymorph of ScF3

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Publication details

The article was received on 15 Feb 2018, accepted on 14 Mar 2018 and first published on 14 Mar 2018


Article type: Paper
DOI: 10.1039/C8CE00257F
Citation: CrystEngComm, 2018,20, 2768-2771
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    Strong negative thermal expansion in the hexagonal polymorph of ScF3

    I. A. Kasatkin, L. B. Gulina, N. V. Platonova, V. P. Tolstoy and I. V. Murin, CrystEngComm, 2018, 20, 2768
    DOI: 10.1039/C8CE00257F

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