Thermodynamic properties of successive phase transitions in Rb2ZnBr4 |
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| Authors: | BK Chaudhuri K Nomoto T Atake H Chihara |
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| Institution: | Chemical Thermodynamics Laboratory and Department of Chemistry, Faculty of Science, Osaka University, Toyonaka, Osaka 560, Japan |
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| Abstract: | Heat capacity measurements have given the following transition temperatures and entropies: 0.027 J K?1mol?1 at 76.5 K, 0.47 J K?1mol?1 at 111.7 K, and 0.048 J K?1mol?1 at 193.6 K. These are interpreted as “lock-in”, soft-mode, and “lock-in” transitions, respectively, from comparison with analogous results for Rb2ZnCl4 and K2SeO4. The N-IC transition was located at 347 K by DTA. |
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