| Автор | T Shigenari |
| Автор | K Abe |
| Автор | K Morita |
| Автор | Qi Ping |
| Автор | E Kojima |
| Автор | H Ino |
| Дата выпуска | 1994-09-05 |
| dc.description | A precursor of a strong first-order structural phase transition has been detected as the critical speeding-up of the lifetime of the fluorescence excited by a picosecond pulsed laser. In the alpha - beta transition of a resorcinol (C<sub>6</sub>H<sub>4</sub>(OH)<sub>2</sub>) crystal, a critical decrease of the lifetimes and an increase in the intensity of the impurity-induced fluorescence were found from about 30 K below T<sub>c</sub>. This is in contrast with the fact that the temperature dependence of the Raman spectra and the dielectric constant shows no precursor effect. From a detailed polarization study, large-amplitude and short-lived vibrational fluctuations associated with the phase transition are suggested as a possible origin of the precursor. Despite the apparent contradiction of the fluctuation-dissipation theorem, the results indicate that divergence of the fluctuation also takes place in the first-order phase transition. The method provides a new approach to the study of a first-order phase transition. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Precursor of a strong first-order phase transition: critical speeding-up of fluorescence lifetime in the alpha - beta transition of resorcinol |
| Тип | paper |
| DOI | 10.1088/0953-8984/6/36/026 |
| Electronic ISSN | 1361-648X |
| Print ISSN | 0953-8984 |
| Журнал | Journal of Physics: Condensed Matter |
| Том | 6 |
| Первая страница | 7469 |
| Последняя страница | 7482 |
| Аффилиация | T Shigenari; Dept. of Appl. Phys. & Chem., Univ. of Electro-Commun., Tokyo, Japan |
| Аффилиация | K Abe; Dept. of Appl. Phys. & Chem., Univ. of Electro-Commun., Tokyo, Japan |
| Аффилиация | K Morita; Dept. of Appl. Phys. & Chem., Univ. of Electro-Commun., Tokyo, Japan |
| Аффилиация | Qi Ping; Dept. of Appl. Phys. & Chem., Univ. of Electro-Commun., Tokyo, Japan |
| Аффилиация | E Kojima; Dept. of Appl. Phys. & Chem., Univ. of Electro-Commun., Tokyo, Japan |
| Аффилиация | H Ino; Dept. of Appl. Phys. & Chem., Univ. of Electro-Commun., Tokyo, Japan |
| Выпуск | 36 |
