Please use this identifier to cite or link to this item: doi:10.22028/D291-45594
Title: Liquid-like versus stress-driven dynamics in a metallic glass former observed by temperature scanning X-ray photon correlation spectroscopy
Author(s): Frey, Maximilian
Neuber, Nico
Riegler, Sascha Sebastian
Cornet, Antoine
Chushkin, Yuriy
Zontone, Federico
Ruschel, Lucas Matthias
Adam, Bastian
Nabahat, Mehran
Yang, Fan
Shen, Jie
Westermeier, Fabian
Sprung, Michael
Cangialosi, Daniele
Di Lisio, Valerio
Gallino, Isabella
Busch, Ralf
Ruta, Beatrice
Pineda, Eloi
Language: English
Title: Nature Communications
Volume: 16
Issue: 1
Publisher/Platform: Springer Nature
Year of Publication: 2025
Free key words: Glasses
Metals and alloys
Phase transitions and critical phenomena
DDC notations: 500 Science
Publikation type: Journal Article
Abstract: Since several decades, the dynamics and vitrification kinetics of supercooled liquids are the subject of active research in science and engineering. Profiting from modern detector technology and highly brilliant fourth-generation syn chrotron radiation, we apply temperature scanning X-ray photon correlation spectroscopy (XPCS) to probe the dynamics of a Pt-based metallic glass former in the glass, glass transition region, and supercooled liquid, covering up to six orders of magnitude in timescales. Our data demonstrates that the structural α-relaxation process is still observable in the glass, although it is partially masked by a faster source of decorrelation observed at atomic scale. We present an approach that interprets these findings as the superposition of heterogeneous liquid-like and stress-driven ballistic-like atomic motions. This work not only extends the dynamical range probed by standard isothermal XPCS but also adds a different view on the α-relaxation across the glass tran sition and provides insights into the anomalous, compressed temporal decay of the density-density correlation functions observed in metallic glasses and many out-of-equilibrium soft materials.
DOI of the first publication: 10.1038/s41467-025-59767-2
URL of the first publication: https://doi.org/10.1038/s41467-025-59767-2
Link to this record: urn:nbn:de:bsz:291--ds-455948
hdl:20.500.11880/40104
http://dx.doi.org/10.22028/D291-45594
ISSN: 2041-1723
Date of registration: 10-Jun-2025
Description of the related object: Supplementary information
Related object: https://static-content.springer.com/esm/art%3A10.1038%2Fs41467-025-59767-2/MediaObjects/41467_2025_59767_MOESM1_ESM.pdf
https://static-content.springer.com/esm/art%3A10.1038%2Fs41467-025-59767-2/MediaObjects/41467_2025_59767_MOESM2_ESM.pdf
https://static-content.springer.com/esm/art%3A10.1038%2Fs41467-025-59767-2/MediaObjects/41467_2025_59767_MOESM3_ESM.pdf
Faculty: NT - Naturwissenschaftlich- Technische Fakultät
Department: NT - Materialwissenschaft und Werkstofftechnik
Professorship: NT - Prof. Dr. Ralf Busch
Collections:SciDok - Der Wissenschaftsserver der Universität des Saarlandes

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