| Attributs | Valeurs |
|---|
| type
| |
| Is Part Of
| |
| Subject
| |
| Title
| - Coexistence of rhcp and fcc phases in hard-sphere colloidal crystals
|
| Date
| |
| has manifestation of work
| |
| related by
| |
| Author
| |
| Abstract
| - We present results for high-resolution small-angle single-crystal X-ray diffraction of hard-sphere silica colloidal crystals. Our results indicate that the stacking probability α of finding an fcc stacking sequence in a strongly compressed sample can only have two discrete values of either 0.5 (for rhcp) or 1 (for fcc) in contrast to previous observations on more dilute systems that metastable hard-sphere rhcp crystals may have various values of α. This suggests that, in a concentrated sample, the transition from rhcp to fcc does not go by a smooth variation of α, but through a rearrangement mechanism via melting, which leads to the formation of perfect fcc crystallites. These crystallites do not possess a single stacking fault as evidenced by the absence of twin fcc reflections.
|
| article type
| |
| publisher identifier
| |
| Date Copyrighted
| |
| Rights
| |
| Rights Holder
| |
| is part of this journal
| |
| is primary topic
of | |
