| Автор | P K Kahol |
| Автор | X Lao |
| Автор | M B Costello |
| Автор | N S Dalal |
| Дата выпуска | 1994-04-11 |
| dc.description | A methodology for investigating dynamics of various spin probes in mixed/glassy systems of the KH<sub>2</sub>PO<sub>4</sub> type is developed. Using this methodology, electron spin resonance (ESR) features of the AsO<sub>4</sub><sup>4-</sup> centre in the paraelectric phase of Rb<sub>1-x</sub>(NH<sub>4</sub>)<sub>x</sub>H<sub>2</sub>PO<sub>4</sub> are shown to arise from strain-broadening and motional-broadening effects. These conclusions are in disagreement with those of a recent study, which implicated the various features observed in the existence of ferroelectric-antiferroelectric fluctuations in Rb<sub>1-x</sub>(NH<sub>4</sub>)<sub>x</sub>H<sub>2</sub>PO<sub>4</sub>. It is additionally shown that hyperfine couplings from Rb isotopes make the dominant contribution to the ESR spectra in Rb-containing compounds. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Lattice-strain versus dynamic effects in electron spin resonance studies of Rb<sub>1-x</sub>(NH<sub>4</sub>)<sub>x</sub>H<sub>2</sub>PO<sub>4</sub> |
| Тип | paper |
| DOI | 10.1088/0953-8984/6/15/020 |
| Electronic ISSN | 1361-648X |
| Print ISSN | 0953-8984 |
| Журнал | Journal of Physics: Condensed Matter |
| Том | 6 |
| Первая страница | 2971 |
| Последняя страница | 2974 |
| Аффилиация | P K Kahol; Dept. of Phys., Wichita State Univ., KS, USA |
| Аффилиация | X Lao; Dept. of Phys., Wichita State Univ., KS, USA |
| Аффилиация | M B Costello; Dept. of Phys., Wichita State Univ., KS, USA |
| Аффилиация | N S Dalal; Dept. of Phys., Wichita State Univ., KS, USA |
| Выпуск | 15 |
