| Автор | A Almeida |
| Автор | M R Chaves |
| Автор | J Agostinho Moreira |
| Автор | Filipa Pinto |
| Автор | A Klöpperpieper |
| Дата выпуска | 1998-12-21 |
| dc.description | Betaine potassium iodide dihydrate, , BKI for short, is a new compound of the aminoacid betaine with a triclinic symmetry and the space group at room temperature. The study of dielectric properties provided evidence for the existence of a structural phase transition occurring around 100 K. The spontaneous electric polarization is zero in both phases. A study of dielectric dispersion disclosed two relaxational modes with different relevance in the high and in the low temperature phases. The main features observed in BKI are consistently described by the Landau theory, by assuming a quadratic coupling between the primary order parameter and the electric polarization. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Betaine potassium iodide dihydrate: a new compound of betaine |
| Тип | lett |
| DOI | 10.1088/0953-8984/10/50/001 |
| Electronic ISSN | 1361-648X |
| Print ISSN | 0953-8984 |
| Журнал | Journal of Physics: Condensed Matter |
| Том | 10 |
| Первая страница | L773 |
| Последняя страница | L777 |
| Выпуск | 50 |
