Bareigts, G, Kiatkirakajorn, P-C, Li, J, Botet, R, Sztucki, M, Cabane, B, Goehring, L ORCID: https://orcid.org/0000-0002-3858-7295 and Labbez, C, 2020. Packing polydisperse colloids into crystals: when charge-dispersity matters. Physical Review Letters, 124 (5): 058003. ISSN 0031-9007
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Abstract
Monte Carlo simulations, fully constrained by experimental parameters, are found to agree well with a measured phase diagram of aqueous dispersions of nanoparticles with a moderate size polydispersity over a broad range of salt concentrations and volume fractions. Upon increasing volume fraction the colloids freeze first into coexisting compact solids then into a body centered cubic phase (bcc) before they melt into a glass forming liquid. The surprising stability of the bcc solid at high volume fractions and salt concentrations is explained by the interaction (charge) polydispersity and vibrational entropy.
Item Type: | Journal article |
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Publication Title: | Physical Review Letters |
Creators: | Bareigts, G., Kiatkirakajorn, P.-C., Li, J., Botet, R., Sztucki, M., Cabane, B., Goehring, L. and Labbez, C. |
Publisher: | American Physical Society (APS) |
Date: | 5 February 2020 |
Volume: | 124 |
Number: | 5 |
ISSN: | 0031-9007 |
Identifiers: | Number Type 10.1103/physrevlett.124.058003 DOI 1290593 Other |
Rights: | © 2020 American Physical Society. |
Divisions: | Schools > School of Science and Technology |
Record created by: | Linda Sullivan |
Date Added: | 11 Feb 2020 11:00 |
Last Modified: | 11 Feb 2020 11:00 |
URI: | https://irep.ntu.ac.uk/id/eprint/39194 |
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