HKUST Institutional Repository >
PHYS Journal/Magazine Articles >
Please use this identifier to cite or link to this item:
|Title: ||Melting of colloidal crystal films|
|Authors: ||Peng, Yi|
Alsayed, Ahmed M.
Yodh, Arjun G.
|Keywords: ||Colloidal crystal films|
|Issue Date: ||21-May-2010 |
|Citation: ||Physical review letters, v. 104, iss. 20, 205703, 21 May, 2010|
|Abstract: ||We study melting mechanisms in single and polycrystalline colloidal films composed of diameter-tunable microgel spheres with short-ranged repulsive interactions and confined between two glass walls. Thick films (>4 layers), thin-films (≤4 layers), and monolayers exhibit different melting behaviors. Thick films melt from grain boundaries in polycrystalline solid films and from film-wall interfaces in single-crystal films; a liquid-solid coexistence regime is observed in thick films but vanishes at a critical thickness of 4 layers. Thin solid films (2 to 4 layers) melt into the liquid phase in one step from both grain boundaries and from within crystalline domains. Monolayers melt in two steps with a middle hexatic phase.|
|Rights: ||Physical Review Letters © copyright (2010) American Physical Society. The Journal's web site is located at http://prl.aps.org|
|Appears in Collections:||PHYS Journal/Magazine Articles|
Files in This Item:
Find published version via
All items in this Repository are protected by copyright, with all rights reserved.