Emergence of multiple relaxation processes during low to high density transition in Au49Cu26.9Si16.3Ag5.5Pd2.3 metallic glass

The existence of multiple amorphous states, or polyamorphism, remains one of the most debated phenomena in disordered matter, particularly regarding its microscopic origin and impact on glassy dynamics. Profiting of the enhanced data quality provided by brilliant synchrotrons, we combined high pressure X-ray photon correlation spectroscopy and X-ray diffraction to investigate the atomic dynamics-structure relationship in a Au49Cu26.9Si16.3Ag5.5Pd2.3 metallic glass at room temperature. We identify a structural and dynamical crossover near 3 GPa, marked by avalanches-like massive atomic rearrangements that promote the system toward increasingly compact atomic cluster connections. This crossover superimposes to a pressure-induced acceleration of the atomic motion recently reported, and signals the onset of a transitional state, potentially linked to the nucleation of a new phase within the glass, characterized by the coexistence of two amorphous states with distinct relaxation processes. These results provide evidence for a sluggish, continuous polyamorphic transformation, even in absence of marked structural discontinuities.

• Publication year

  2025

• Venue

  Unknown venue

• Publication date

  2025-10-07

• Fields of study

  Materials Science, Physics

• Identifiers
  arXiv 2510.06409
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar

• No claims are published for this paper.

• No concepts are published for this paper.

• Liquid-like versus stress-driven dynamics in a metallic glass former observed by temperature scanning X-ray photon correlation spectroscopy

  2025cited by this paper
• Multicomponent dynamics in amorphous ice studied using X-ray photon correlation spectroscopy at elevated pressure and cryogenic temperatures

  2025cited by this paper
• High-pressure X-ray photon correlation spectroscopy at fourth-generation synchrotron sources

  2024cited by this paper
• Continuous polyamorphic transition in high-entropy metallic glass

  2024cited by this paper
• On the interplay of liquid-like and stress-driven dynamics in a metallic glass former observed by temperature scanning XPCS

  2024cited by this paper
• Intrinsic Dynamics of Amorphous Ice Revealed by a Heterodyne Signal in X-ray Photon Correlation Spectroscopy Experiments

  2023cited by this paper
• Pressure-induced nonmonotonic cross-over of steady relaxation dynamics in a metallic glass

  2023cited by this paper
• Denser glasses relax faster: Enhanced atomic mobility and anomalous particle displacement under in-situ high pressure compression of metallic glasses

  2023influential reference
• Reversible linear-compression behavior of free volume in a metallic glass

  2022influential reference
• High-entropy induced a glass-to-glass transition in a metallic glass

  2022cited by this paper
• Amorpheus: a Python-based software for the treatment of X-ray scattering data of amorphous and liquid systems

  2022cited by this paper
• Effect of composition and thermal history on deformation behavior and cluster connections in model bulk metallic glasses

  2022cited by this paper
• Using coherent X-rays to follow dynamics in amorphous ices

  2022cited by this paper
• Impact of High Pressure on Reversible Structural Relaxation of Metallic Glass

  2021cited by this paper
• Glass-forming ability correlated with the liquid-liquid transition in Pd42.5Ni42.5P15 alloy

  2021cited by this paper
• Structural Dynamics of Materials Probed by X-Ray Photon Correlation Spectroscopy

  2020cited by this paper
• Liquid-liquid transition and polyamorphism.

  2020cited by this paper
• Theory of Pressure-Induced Rejuvenation and Strain Hardening in Metallic Glasses.

  2020cited by this paper
• High Pressure Quenched Glasses: unique structures and properties

  2020cited by this paper
• Strain-hardening and suppression of shear-banding in rejuvenated bulk metallic glass

  2020influential reference
• Two-way tuning of structural order in metallic glasses

  2020cited by this paper
• Polyamorphic transition in a transition metal based metallic glass under high pressure

  2019cited by this paper
• Signatures of structural differences in Pt–P- and Pd–P-based bulk glass-forming liquids

  2019cited by this paper
• Temperature- and Pressure-Induced Polyamorphic Transitions in AuCuSi Alloy

  2019cited by this paper
• Hydrostatic pressure effect on metallic glasses: A theoretical prediction

  2019cited by this paper
• Microscopic evidence of the connection between liquid-liquid transition and dynamical crossover in an ultraviscous metallic glass former

  2018influential reference
• Real-time diffraction computed tomography data reduction.

  2018cited by this paper
• Hierarchical aging pathways and reversible fragile-to-strong transition upon annealing of a metallic glass former

  2018influential reference
• Diffusive dynamics during the high-to-low density transition in amorphous ice

  2017cited by this paper
• On the Fragility of Bulk Metallic Glass Forming Liquids

  2017influential reference
• Relaxation processes and physical aging in metallic glasses

  2017cited by this paper
• Pressure-induced polyamorphism by quantitative structure factor and pair distribution function analysis in two Ce-based metallic glasses

  2017cited by this paper
• Pressure-induced elastic anomaly in a polyamorphous metallic glass

  2017cited by this paper
• Unveiling the structural arrangements responsible for the atomic dynamics in metallic glasses during physical aging

  2015influential reference
• Length scale-dependent structural relaxation in Zr57.5Ti7.5Nb5Cu12.5Ni10Al7.5 metallic glass

  2015cited by this paper
• Second-Nearest-Neighbor Correlations from Connection of Atomic Packing Motifs in Metallic Glasses and Liquids

  2015cited by this paper
• The fast azimuthal integration Python library: pyFAI

  2015cited by this paper
• Facts and fictions about polymorphism.

  2015influential reference
• Hierarchical densification and negative thermal expansion in Ce-based metallic glass under high pressure

  2015influential reference
• Universal fractional noncubic power law for density of metallic glasses.

  2014cited by this paper
• Glass–glass transition during aging of a colloidal clay

  2014influential reference
• Structural and dynamical properties of Mg65Cu25Y10 metallic glasses studied by in situ high energy X-ray diffraction and time resolved X-ray photon correlation spectroscopy

  2014cited by this paper
• βrelaxation and low-temperature aging in a Au-based bulk metallic glass: From elastic properties to atomic-scale structure

  2014cited by this paper
• Liquid–liquid transition in a strong bulk metallic glass-forming liquid

  2013cited by this paper
• Compressed correlation functions and fast aging dynamics in metallic glasses.

  2013cited by this paper
• The elastic properties, elastic models and elastic perspectives of metallic glasses

  2012cited by this paper
• A novel event correlation scheme for X-ray photon correlation spectroscopy

  2012cited by this paper
• Pressure-induced amorphous-to-amorphous configuration change in Ca-Al metallic glasses

  2012cited by this paper
• Direct measurement of microstructural avalanches during the martensitic transition of cobalt using coherent x-ray scattering.

  2011influential reference
• Slow aging dynamics and avalanches in a gold-cadmium alloy investigated by x-ray photon correlation spectroscopy.

  2011influential reference
• Polymorphism − A Perspective

  2011influential reference
• Origin of pressure-induced polyamorphism in Ce75Al25 metallic glass.

  2010cited by this paper
• Hydrostatic limits of 11 pressure transmitting media

  2009cited by this paper
• Polyamorphism in a metallic glass.

  2007influential reference
• Finite-strain analysis of relative compressibilities: Application to the high-pressure wadsleyite phase as an illustration

  2007cited by this paper
• Smithells metals reference book, 8th ed., W.F. Gale, T.C. Totemeier (Eds.). Elsevier, Amsterdam (2004), 2054 (approximately), Price: 40.00, ISBN: 0-7506-7509-8

  2006influential reference
• Observation of a pressure-induced first-order polyamorphic transition in a chalcogenide glass at ambient temperature.

  2006cited by this paper
• Adding a length scale to the polyamorphic ice debate.

  2006influential reference
• A density-driven phase transition between semiconducting and metallic polyamorphs of silicon

  2005cited by this paper
• Excess free volume in metallic glasses measured by X-ray diffraction

  2005cited by this paper
• Re-entrant glass transition in a colloid-polymer mixture with depletion attractions.

  2002cited by this paper
• Multiple Glassy States in a Simple Model System

  2002cited by this paper
• Propagation of the polyamorphic transition of ice and the liquid–liquid critical point

  2002cited by this paper
• Fragile-to-strong transition and polyamorphism in the energy landscape of liquid silica

  2001cited by this paper
• Breakdown of intermediate-range order in liquid GeSe2 at high pressure

  2001influential reference
• Orientational behavior of solid nitrogen at high pressures investigated by vibrational Raman spectroscopy

  1996cited by this paper
• Pressure-induced coordination changes in crystalline and vitreous GeO2.

  1989cited by this paper
• An apparently first-order transition between two amorphous phases of ice induced by pressure

  1985cited by this paper
• A theory of the electrical properties of liquid metals

  1965cited by this paper
• A method for converting experimental X-ray intensities to an absolute scale

  1956cited by this paper
• Elasticity and Constitution of the Earth's Interior

  1952cited by this paper

• No citing papers are available for this paper.