| Автор | R N Kumar |
| Автор | C P G Vallabhan |
| Дата выпуска | 1989-09-04 |
| dc.description | DC and AC electrical conductivity measurements in single crystals of diammonium hydrogen phosphate along the c axis show anomalous variations at 174, 246 and 416 K. The low-frequency dielectric constant also exhibits peaks exactly at these temperatures with a thermal hysteresis of 13 degrees C for the peak at 416 K. These specific features of the electrical properties are in agreement with earlier NMR second-moment data and can be identified with three distinct phase transitions that occur in the crystal. The electrical conductivity values have been found to increase linearly with impurity concentration in specimens doped with a specific amount of SO<sub>4</sub><sup>2-</sup> ions. The mechanisms of the phase transition and of the electrical conduction process are discussed in detail. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Electrical conductivity, dielectric constant and phase transitions in pure and doped diammonium hydrogen phosphate |
| Тип | paper |
| DOI | 10.1088/0953-8984/1/35/009 |
| Electronic ISSN | 1361-648X |
| Print ISSN | 0953-8984 |
| Журнал | Journal of Physics: Condensed Matter |
| Том | 1 |
| Первая страница | 6095 |
| Последняя страница | 6103 |
| Аффилиация | R N Kumar; Dept. of Phys., Cochin Univ. of Sci. & Technol., India |
| Аффилиация | C P G Vallabhan; Dept. of Phys., Cochin Univ. of Sci. & Technol., India |
| Выпуск | 35 |
