Antiferroelectric properties and site occupations of R³⁺ cations in Ca₈MgR(PO₄)₇ luminescent host materials

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• 作者：Alexei A. Belik^a ; ^{Alexei.BELIK@nims.go.jp} ; Vladimir A. Morozov^b ; ^c ; Dina V. Deyneko^b ; ^d ; Alexander E. Savon^e ; Oksana V. Baryshnikova^b ; Evgeniya S. Zhukovskaya^b ; Nikolay G. Dorbakov^b ; Yoshio Katsuya^f ; Masahiko Tanaka^f ; Sergey Yu Stefanovich^b ; Joke Hadermann^c ; Bogdan I. Lazoryak^b
• 关键词：Optical materials ; Inorganic materials ; Solid state reactions ; Crystal structure ; Luminescence ; Synchrotron radiation
• 刊名：Journal of Alloys and Compounds
• 出版年：2017
• 出版时间：30 March 2017
• 年：2017
• 卷：699
• 期：Complete
• 页码：928-937
• 全文大小：2268 K
• 卷排序：699

文摘

Crystal structures of Ca8MgR(PO4)7 (R = rare-earth elements) luminescent materials were studied. Ca8MgR(PO4)7 crystallize in centrosymmetric space group R-3c in contrast to their parent compound. Distribution of rare-earth elements among structural sites was established. Antiferroelectric properties were detected in all samples.