Dielectric measurements,X-ray diffraction and raman studies of mixed caesium-ammonium mercury chloride: Cs0.7(NH4)0.3HgCl3 |
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| Authors: | A Kabadou R Ben Hassen A Ben Salah |
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| Institution: | Laboratoire de I'Etat Solide, Faculté des Sciences de Sfax , Sfax, 3038, Tunisia |
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| Abstract: | Measurements of the dielectric constants have revealed a transition at T=449K in Cs0.7(NH4)0.3HgCl3. This transition was confirmed by X-ray diffraction and Raman scattering on polycrystalline samples. The room-temperature phase is ordered and exhibits trigonal symmetry (space group P32 with the unit cell dimensions a = 13.295(11) Å; c = 9.419(8) Å). Transport properties in this material appear to be due to the high mobility of NH+ 4 andCs+. |
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| Keywords: | Mercury alloys Electrical properties Perovskite structure Conductivity |
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