Lázaro-Lázaro, Edilio and Perera-Burgos, Jorge Adrián and Laermann, Patrick and Sentjabrskaja, Tatjana and Pérez-Ángel, Gabriel and Laurati, Marco and Egelhaaf, S. U. and Medina-Noyola, Magdaleno and Voigtmann, Thomas and Castañedo-Priego, Ramón and Elizondo Aguilera, Luis Fernando (2019) Glassy dynamics in asymmetric binary mixtures of hard spheres. Physical Review E, 99, 042603. American Physical Society. doi: 10.1103/PhysRevE.99.042603. ISSN 2470-0045.
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Abstract
We perform a systematic and detailed study of the glass transition in highly asymmetric binary mixtures of colloidal hard spheres, combining differential dynamic microscopy experiments, event-driven molecular dynamics simulations, and theoretical calculations, exploring the whole state diagram and determining the self-dynamics and collective dynamics of both species. Two distinct glassy states involving different dynamical arrest transitions are consistently described, namely, a double glass with the simultaneous arrest of the self-dynamics and collective dynamics of both species, and a single glass of large particles in which the self-dynamics of the small species remains ergodic. In the single-glass scenario, spatial modulations in the collective dynamics of both species occur due to the structure of the large spheres, a feature not observed in the double-glass domain. The theoretical results, obtained within the self-consistent generalized Langevin equation formalism, are in agreement with both simulations and experimental data, thus providing a stringent validation of this theoretical framework in the description of dynamical arrest in highly asymmetric mixtures. Our findings are summarized in a state diagram that classifies the various amorphous states of highly asymmetric mixtures by their dynamical arrest mechanisms.
Item URL in elib: | https://elib.dlr.de/129128/ | ||||||||||||||||||||||||||||||||||||
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Document Type: | Article | ||||||||||||||||||||||||||||||||||||
Title: | Glassy dynamics in asymmetric binary mixtures of hard spheres | ||||||||||||||||||||||||||||||||||||
Authors: |
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Date: | 5 April 2019 | ||||||||||||||||||||||||||||||||||||
Journal or Publication Title: | Physical Review E | ||||||||||||||||||||||||||||||||||||
Refereed publication: | Yes | ||||||||||||||||||||||||||||||||||||
Open Access: | No | ||||||||||||||||||||||||||||||||||||
Gold Open Access: | No | ||||||||||||||||||||||||||||||||||||
In SCOPUS: | Yes | ||||||||||||||||||||||||||||||||||||
In ISI Web of Science: | Yes | ||||||||||||||||||||||||||||||||||||
Volume: | 99 | ||||||||||||||||||||||||||||||||||||
DOI: | 10.1103/PhysRevE.99.042603 | ||||||||||||||||||||||||||||||||||||
Page Range: | 042603 | ||||||||||||||||||||||||||||||||||||
Publisher: | American Physical Society | ||||||||||||||||||||||||||||||||||||
ISSN: | 2470-0045 | ||||||||||||||||||||||||||||||||||||
Status: | Published | ||||||||||||||||||||||||||||||||||||
Keywords: | glass transition, binary mixtures, partial arrest, colloidal suspensions | ||||||||||||||||||||||||||||||||||||
HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||||||||||||||||||||||||||
HGF - Program: | Space | ||||||||||||||||||||||||||||||||||||
HGF - Program Themes: | Research under Space Conditions | ||||||||||||||||||||||||||||||||||||
DLR - Research area: | Raumfahrt | ||||||||||||||||||||||||||||||||||||
DLR - Program: | R FR - Research under Space Conditions | ||||||||||||||||||||||||||||||||||||
DLR - Research theme (Project): | R - Material Design and New Materials | ||||||||||||||||||||||||||||||||||||
Location: | Köln-Porz | ||||||||||||||||||||||||||||||||||||
Institutes and Institutions: | Institute of Materials Physics in Space | ||||||||||||||||||||||||||||||||||||
Deposited By: | Voigtmann, Dr.rer.nat. Thomas | ||||||||||||||||||||||||||||||||||||
Deposited On: | 16 Sep 2019 07:25 | ||||||||||||||||||||||||||||||||||||
Last Modified: | 17 Mar 2021 13:40 |
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