| Автор | W. I. F. David |
| Автор | R. M. Ibberson |
| Автор | T. J. S. Dennis |
| Автор | J. P. Hare |
| Автор | K. Prassides |
| Дата выпуска | 1992-02-21 |
| dc.description | High-resolution powder neutron diffraction has been used to study the crystal structure of the fullerence C<sub>60</sub> in the temperature range 5 K to 320 K. Solid C<sub>60</sub> adopts a cubic structure at all temperatures. The experimental data provide clear evidence of a continuous phase transition at ca. 90 K and confirm the existence of a first-order phase transition at 260 K. In the high-temperature face-centred-cubic phase (T > 260 K), the C<sub>60</sub> molecules are completely orientationally disordered, undergoing continuous reorientation. Below 260 K, interpretation of the diffraction data is consistent with uniaxial jump reorientation principally about a single ⟨111⟩ direction. In the lowest-temperature phase (T < 90 K), rotational motion is frozen although a small amount of static disorder still persists. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Structural Phase Transitions in the Fullerene C<sub>60</sub> |
| Тип | lett |
| DOI | 10.1209/0295-5075/18/3/006 |
| Electronic ISSN | 1286-4854 |
| Print ISSN | 0295-5075 |
| Журнал | EPL (Europhysics Letters) |
| Том | 18 |
| Первая страница | 219 |
| Последняя страница | 225 |
| Выпуск | 3 |
