Ferroelectric properties of pyridinium perrhenate
Polycrystalline pyridinium perrhenate has been studied over a wide range of temperatures by differential thermal analysis, differential scanning calorimetry, proton NMR spectra and relaxation, and dielectric permittivity measurements. Two solid–solid phase transitions at 250 and 333 K have been reve...
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| Veröffentlicht in: | The Journal of chemical physics 1997-07, Vol.107 (2), p.576-579 |
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| Hauptverfasser: | , , , , |
| Format: | Artikel |
| Sprache: | eng |
| Online-Zugang: | Volltext |
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| Zusammenfassung: | Polycrystalline pyridinium perrhenate has been studied over a wide range of temperatures by differential thermal analysis, differential scanning calorimetry, proton NMR spectra and relaxation, and dielectric permittivity measurements. Two solid–solid phase transitions at 250 and 333 K have been revealed and the pyridinium cation reorientations characterized. The higher transition appears to be the Curie point of a new ferroelectric compound. |
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| ISSN: | 0021-9606 1089-7690 |
| DOI: | 10.1063/1.474417 |