Study of Phase Transformations in (Cs,NH4)4(HSO4)3(H2PO4) Crystals


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Abstract

Phase transitions in crystals of (Cs,NH4)4(HSO4)3(H2PO4) solid solutions have been investigated by synchronous thermal analysis and polarization microscopy at different temperatures. The temperatures of structural modifications are established; it is shown that the replacement of Cs cations with NH4 in Cs4(HSO4)3(H2PO4) crystals reduces the temperatures of phase transformations.

About the authors

E. V. Selezneva

Shubnikov Institute of Crystallography, Federal Scientific Research Center “Crystallography and Photonics,”
Russian Academy of Sciences

Author for correspondence.
Email: msdmitricheva@yandex.ru
Russian Federation, Moscow, 119333

I. S. Timakov

Shubnikov Institute of Crystallography, Federal Scientific Research Center “Crystallography and Photonics,”
Russian Academy of Sciences

Email: msdmitricheva@yandex.ru
Russian Federation, Moscow, 119333

V. A. Komornikov

Shubnikov Institute of Crystallography, Federal Scientific Research Center “Crystallography and Photonics,”
Russian Academy of Sciences

Email: msdmitricheva@yandex.ru
Russian Federation, Moscow, 119333

V. V. Grebenev

Shubnikov Institute of Crystallography, Federal Scientific Research Center “Crystallography and Photonics,”
Russian Academy of Sciences

Email: msdmitricheva@yandex.ru
Russian Federation, Moscow, 119333

O. B. Zajnullin

Shubnikov Institute of Crystallography, Federal Scientific Research Center “Crystallography and Photonics,”
Russian Academy of Sciences

Email: msdmitricheva@yandex.ru
Russian Federation, Moscow, 119333

I. P. Makarova

Shubnikov Institute of Crystallography, Federal Scientific Research Center “Crystallography and Photonics,”
Russian Academy of Sciences

Email: msdmitricheva@yandex.ru
Russian Federation, Moscow, 119333

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