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Updated: Jun 24, 2026

Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses
Published on: June 7, 2018
Macroscopic Illusion and Microscopic Reality of Glass Formation Paths: Cooling vs Compression
Kajetan Koperwas1, Żaneta Wojnarowska1, Marian Paluch1
1University of Silesia in Katowice, Institute of Physics, 75 Pułku Piechoty 1, 41-500 Chorzów, Poland.
Abstract:
We provide evidence that dynamical slowdown in glass-forming liquids may follow different microscopic routes under cooling and compression, pointing to a previously unrecognized discrepancy between two dynamical landmarks: the Arrhenius-to-non-Arrhenius crossover associated with cooling and the inflection point emerging under compression. This separation suggests the coexistence of two distinct mechanisms governing dynamical slowdown and naturally supports the dynamic facilitation framework already at small supercoolings. Based on simulations, we further show that it is the inflection point, rather than the Arrhenius-to-non-Arrhenius crossover, that is more directly associated with the growth of dynamical heterogeneity.
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