scholarly journals Can the glass transition be explained without a growing static length scale?

2019 ◽  
Vol 150 (9) ◽  
pp. 094501 ◽  
Author(s):  
Ludovic Berthier ◽  
Giulio Biroli ◽  
Jean-Philippe Bouchaud ◽  
Gilles Tarjus
Keyword(s):  
Glass Transition ◽  
Length Scale

Length Scale of Cooperativity in the Dynamic Glass Transition

1997 ◽  
Vol 79 (11) ◽  
pp. 2077-2080 ◽  
Author(s):  
M. Arndt ◽  
R. Stannarius ◽  
H. Groothues ◽  
E. Hempel ◽  
F. Kremer
Keyword(s):  
Glass Transition ◽  
Length Scale

Dynamic Heterogeneity and Cooperative Length Scale at Dynamic Glass Transition in Glass Forming Liquids

2015 ◽  
Vol 48 (22) ◽  
pp. 8219-8231 ◽  
Author(s):  
Bidur Rijal ◽  
Laurent Delbreilh ◽  
Allisson Saiter
Keyword(s):  
Glass Transition ◽  
Length Scale ◽  
Dynamic Heterogeneity ◽  
Glass Forming

scholarly journals Probing a Critical Length Scale at the Glass Transition

2010 ◽  
Vol 104 (20) ◽  
Author(s):  
Majid Mosayebi ◽  
Emanuela Del Gado ◽  
Patrick Ilg ◽  
Hans Christian Öttinger
Keyword(s):  
Glass Transition ◽  
Critical Length ◽  
Length Scale

Effect of substrate interactions on the glass transition and length-scale of correlated dynamics in ultra-thin molecular glass films

2018 ◽  
Vol 149 (18) ◽  
pp. 184902 ◽  
Author(s):  
Yue Zhang ◽  
Connor N. Woods ◽  
Mauricio Alvarez ◽  
Yi Jin ◽  
Robert A. Riggleman ◽  
...  
Keyword(s):  
Glass Transition ◽  
Length Scale ◽  
Substrate Interactions ◽  
Molecular Glass ◽  
Glass Films

Possible Causes of the Change of Dynamics in Glass-Forming Materials Subjected to Reduced Dimension

1996 ◽  
Vol 455 ◽  
Author(s):  
K. L. Ngai ◽  
A. K. Rizos
Keyword(s):  
Thin Films ◽  
Glass Transition ◽  
Transition Temperature ◽  
Glass Transition Temperature ◽  
Bulk Material ◽  
Three Dimensions ◽  
Radius Of Gyration ◽  
Length Scale ◽  
Glass Forming ◽  
Reduced Dimension

ABSTRACTThere is currently many ongoing investigations of the change in the glass transition temperature when a material is reduced in dimension from the normal bulk state. The reduction in dimension can be accomplished by casting the material as thin films with or without a substrate or putting it in nanometer size pores. In this work, we explore possible causes of the change in dynamics of the bulk material when the glass-former is subjected to such modifications. The existence of a growing cooperative length scale L(T) with decreasing temperature in bulk fragile glass-forming liquids reaching the size of approximately 1.5–2.0 nm at the glass transition temperature is the basis of our consideration. When the reduced dimension is comparable to L(Tg), cooperative dynamics within a lengthscale equal to L(Tg) can no longer be maintained in all three dimensions throughout the sample. The imposed reduction of the cooperative length scale speeds up the dynamics and causes a reduction of the glass transition temperature. For polymeric glass-formers particularly at higher molecular weights, reduction of one dimension in thin films engenders orientation of the polymer chains when their radius of gyration becomes comparable to the film thickness. The latter is known to cause also a reduction of the glass transition temeperature.

The length scale dependence of viscosity approaching the glass transition in glycerol

1991 ◽  
Vol 94 (10) ◽  
pp. 6924-6925 ◽  
Author(s):  
Paul K. Dixon ◽  
Sidney R. Nagel ◽  
David A. Weitz
Keyword(s):  
Glass Transition ◽  
Scale Dependence ◽  
Length Scale
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