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Issue 41, 2018
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Dimensional crossover of correlated anion disorder in oxynitride perovskites

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Abstract

A simple crossover from two-dimensional to three-dimensional correlated disorder of O and N atoms on a cubic lattice has been discovered within the Ba1−xSrxTaO2N series of perovskite oxynitrides. The crossover is driven by lattice expansion as x decreases, and provides a rapid increase in entropy due to a change from subextensive to extensive configurational entropy regimes.

Graphical abstract: Dimensional crossover of correlated anion disorder in oxynitride perovskites

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Publication details

The article was received on 23 Mar 2018, accepted on 01 May 2018 and first published on 01 May 2018


Article type: Communication
DOI: 10.1039/C8CC03462A
Citation: Chem. Commun., 2018,54, 5245-5247
  • Open access: Creative Commons BY-NC license
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    Dimensional crossover of correlated anion disorder in oxynitride perovskites

    H. Johnston, A. P. Black, P. Kayser, J. Oró-Solé, D. A. Keen, A. Fuertes and J. P. Attfield, Chem. Commun., 2018, 54, 5245
    DOI: 10.1039/C8CC03462A

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