Dynamic facilitation theory: a statistical mechanics approach to dynamic arrest
- Publikationstyp:
- Zeitschriftenaufsatz
- Metadaten:
-
- Autoren
- Thomas Speck
- Autoren-URL
- https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=fis-test-1&SrcAuth=WosAPI&KeyUT=WOS:000482574800001&DestLinkType=FullRecord&DestApp=WOS_CPL
- DOI
- 10.1088/1742-5468/ab2ace
- Externe Identifier
- Clarivate Analytics Document Solution ID: IT0ZC
- ISSN
- 1742-5468
- Zeitschrift
- JOURNAL OF STATISTICAL MECHANICS-THEORY AND EXPERIMENT
- Schlüsselwörter
- glasses (structural)
- slow relaxation
- glassy dynamics
- aging
- dynamical heterogeneities
- Artikelnummer
- ARTN 084015
- Datum der Veröffentlichung
- 2019
- Status
- Published
- Titel
- Dynamic facilitation theory: a statistical mechanics approach to dynamic arrest
- Sub types
- Article
Datenquelle: Web of Science (Lite)
- Andere Metadatenquellen:
-
- Autoren
- Thomas Speck
- DOI
- 10.1088/1742-5468/ab2ace
- eISSN
- 1742-5468
- Ausgabe der Veröffentlichung
- 8
- Zeitschrift
- Journal of Statistical Mechanics: Theory and Experiment
- Online publication date
- 2019
- Paginierung
- 084015 - 084015
- Status
- Published online
- Herausgeber
- IOP Publishing
- Herausgeber URL
- http://dx.doi.org/10.1088/1742-5468/ab2ace
- Datum der Datenerfassung
- 2019
- Titel
- Dynamic facilitation theory: a statistical mechanics approach to dynamic arrest
- Ausgabe der Zeitschrift
- 2019
Datenquelle: Crossref
- Abstract
- The modeling of supercooled liquids approaching dynamic arrest has a long tradition, which is documented through a plethora of competing theoretical approaches. Here, we review the modeling of supercooled liquids in terms of dynamic "defects", also called excitations or soft spots, that are able to sustain motion. To this end, we consider a minimal statistical mechanics description in terms of active regions with the order parameter related to their typical size. This is the basis for both Adam-Gibbs and dynamical facilitation theory, which differ in their relaxation mechanism as the liquid is cooled: collective motion of more and more particles vs. concerted hierarchical motion over larger and larger length scales. For the latter, dynamic arrest is possible without a growing static correlation length, and we sketch the derivation of a key result: the parabolic law for the structural relaxation time. We critically discuss claims in favor of a growing static length and argue that the resulting scenarios for pinning and dielectric relaxation are in fact compatible with dynamic facilitation.
- Autoren
- Thomas Speck
- Autoren-URL
- http://arxiv.org/abs/1902.07768v1
- Zeitschrift
- J. Stat. Mech. 084015 (2019)
- Schlüsselwörter
- cond-mat.stat-mech
- cond-mat.stat-mech
- cond-mat.mtrl-sci
- Datum der Veröffentlichung
- 2019
- Herausgeber URL
- http://dx.doi.org/10.1088/1742-5468/ab2ace
- Datum der Datenerfassung
- 2019
- Datum, an dem der Datensatz öffentlich gemacht wurde
- 2019
- Titel
- Dynamic facilitation theory: A statistical mechanics approach to dynamic arrest
Files
1902.07768v1.pdf
Datenquelle: arXiv
- Beziehungen:
- Eigentum von