298 citations · 797 across the 19 of their papers we have counts for
20 papers
Breakdown of material-time scaling in the microscopic dynamics of metallic glasses
Till Böhmer, Jie Shen, Jan Philipp Gabriel +6
Physical aging in glasses is often described using the concept of material time, which assumes the underlying relaxation mechanism to remain the same as in equilibrium, but with a…
X-ray photo-induced atomic motion in Phase Change Materials and conventional covalent chalcogenide glasses
Irene Festi, Antoine Cornet, Tomoki Fujita +10
X-ray Photon Correlation Spectroscopy (XPCS) enables direct access to atomic-scale dynamics in disordered materials, revealing both spontaneous and X-ray-induced relaxation process…
Emergence of multiple relaxation processes during low to high density transition in Au49Cu26.9Si16.3Ag5.5Pd2.3 metallic glass
Alberto Ronca, Antoine Cornet, Jie Shen +8
The existence of multiple amorphous states, or polyamorphism, remains one of the most debated phenomena in disordered matter, particularly regarding its microscopic origin and impa…
Linking the pressure dependence of the structure and thermal stability to α- and \b{eta}-relaxations in metallic glasses
Jie Shen, Antoine Cornet, Alberto Ronca +13
Glasses derive their functional properties from complex relaxation dynamics that remain enigmatic under extreme conditions. While the temperature dependence of these relaxation pro…
Break-down of the relationship between α-relaxation and equilibration in hydrostatically compressed metallic glasses
Antoine Cornet, Jie Shen, Alberto Ronca +20
Glasses encode the memory of any thermo-mechanical treatment applied to them. This ability is associated to the existence of a myriad of metastable amorphous states which can be pr…
On the interplay of liquid-like and stress-driven dynamics in a metallic glass former observed by temperature scanning XPCS
Maximilian Frey, Nico Neuber, Sascha Sebastian Riegler +16
Modern detector technology and highly brilliant fourth-generation synchrotrons allow to improve the temporal resolution in time-resolved diffraction studies. Profiting from this, w…
Directly observing atomic-scale relaxations of a glass forming liquid using femtosecond X-ray photon correlation spectroscopy
Tomoki Fujita, Yanwen Sun, Haoyuan Li +25
Glass forming liquids exhibit structural relaxation behaviors, reflecting underlying atomic rearrangements on a wide range of timescales. These behaviors play a crucial role in det…
Pressure-induced non-monotonic crossover of steady relaxation dynamics in a metallic glass
Xin Zhang, Hongbo Lou, Beatrice Ruta +8
Relaxation dynamics, as a key to understand glass formation and glassy properties, remains an elusive and challenging issue in condensed matter physics. In this work, in situ high-…
Denser glasses relax faster: a competition between rejuvenation and aging during in-situ high pressure compression at the atomic scale
A. Cornet, G. Garbarino, F. Zontone +15
A fascinating feature of metallic glasses is their ability to explore different configurations under mechanical deformations. This effect is usually observed through macroscopic ob…
Disentangling structural and kinetic components of the α-relaxation in supercooled metallic liquids
Nico Neuber, Oliver Gross, Maximilian Frey +10
The particle motion associated to the α-relaxation in supercooled liquids is still challenging scientists due to its difficulty to be probed experimentally. By combining synchrotro…
Wave vector dependence of the dynamics in supercooled metallic liquids
B. Ruta, S. Hechler, N. Neuber +13
We present a detailed investigation of the wave vector dependence of collective atomic motion in Au49Cu26.9Si16.3Ag5.5Pd2.3 and Pd42.5Cu27Ni9.5P21 supercooled liquids close to the…
Relaxation dynamics induced in glasses by the absorption of hard X-ray photons
Giovanna Pintori, Giacomo Baldi, Beatrice Ruta +1
X-ray photon correlation is used to probe the slow dynamics of the glass-former B2O3 across the glass transition. In the undercooled liquid phase the decay times of the measured co…
Activation energy spectrum for relaxation and polyamorphism in an ultra-viscous metallic glass former
Isabella Gallino, Daniele Cangialosi, Zach Evenson +4
Many glass-formers exhibit phase transitions between two distinct liquid states. For some metallic glass-formers, the liquid-liquid transition is experimentally found in the superc…
Liquid-liquid transition revealed by quasi-static cooling of an ultra-viscous metallic liquid
S. Hechler, B. Ruta, M. Stolpe +7
Temperature-driven polyamorphism has been reported in various supercooled liquids and glasses. The dynamical and structural routes followed by the system during such crossovers are…
Hard X-rays as pump and probe of atomic motion in oxide glasses
B. Ruta, F. Zontone, Y. Chushkin +5
Nowadays powerful X-ray sources like synchrotrons and free-electron lasers are considered as ultimate tools for probing microscopic properties in materials. However, the correct in…
Unveiling the structural arrangements responsible for the atomic dynamics in metallic glasses during physical aging
V. M. Giordano, B. Ruta
Understanding and controlling physical aging, i.e. the spontaneous temporal evolution of out-of-equilibrium systems, represents one of the greatest tasks in material science. Recen…
X-Ray Photon Correlation Spectroscopy Reveals Intermittent Aging Dynamics in a Metallic Glass
Zach Evenson, Beatrice Ruta, Simon Hechler +4
We use coherent X-rays to probe the aging dynamics of a metallic glass directly on the atomic level. Contrary to the common assumption of a steady slowing down of the dynamics usua…
Controlling the dynamics of a bidimensional gel above and below its percolation transition
D. Orsi, B. Ruta, Y. Chushkin +5
The morphology and the microscopic internal dynamics of a bidimensional gel formed by spontaneous aggregation of gold nanoparticles confined at the water surface are investigated b…
Compressed correlation functions and fast aging dynamics in metallic glasses
B. Ruta, G. Baldi, G. Monaco +1
We present x-ray photon correlation spectroscopy measurements of the atomic dynamics in a Zr67Ni33 metallic glass, well below its glass transition temperature. We find that the dec…
Atomic-scale relaxation dynamics and aging in a metallic glass probed by X-ray photon correlation spectroscopy
B. Ruta, Y. Chushkin, G. Monaco +5
We use X-Ray Photon Correlation Spectroscopy to investigate the structural relaxation process in a metallic glass on the atomic length scale. We report evidence for a dynamical cro…