The Changes of Thermal, Dielectric, and Optical Properties at Insertion of Small Concentrations of Ammonium to K3H(SO4)2 Crystals
| Autor: | I. P. Makarova, R. R. Choudhury, V. A. Komornikov, R. Chitra, E. V. Selezneva, V. V. Grebenev, Inna A. Malyshkina, N. D. Gavrilova |
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| Rok vydání: | 2018 |
| Předmět: |
010302 applied physics
Phase transition Phase transition kinetics Materials science Doping Analytical chemistry General Chemistry Dielectric Atmospheric temperature range 010403 inorganic & nuclear chemistry Condensed Matter Physics 01 natural sciences 0104 chemical sciences chemistry.chemical_compound chemistry 0103 physical sciences Thermal General Materials Science Ammonium Crystallite |
| Zdroj: | Crystallography Reports. 63:553-562 |
| ISSN: | 1562-689X 1063-7745 |
| Popis: | The structure of (K1–x(NH4)x)3H(SO4)2 crystals with a low ammonium concentration and the behavior of their thermal, optical, and dielectric properties in a temperature range of 275–500 K have been investigated to clarify the influence of doping on the phase transition kinetics. An examination of unit-cell parameters of (K1 – x(NH4)x)3H(SO4)2 single crystals has confirmed the existence of a superprotonic phase transition at a temperature of ≈450K. The conducting properties of single-crystal and polycrystalline samples have been studied. |
| Databáze: | OpenAIRE |
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