306 citations · 4.2k across the 116 of their papers we have counts for
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Low-energy optical phonons induce glassy-like vibrational and thermal anomalies in ordered crystals
M. Baggioli, A. Zaccone
It is widely accepted that structural glasses and disordered crystals exhibit anomalies in the their thermal, mechanical and acoustic properties as manifestations of the breakdown…
Possible origin of -relaxation in amorphous metal alloys from atomic-mass differences of the constituents
Bingyu Cui, Zach Evenson, Beibei Fan +3
We employ an atomic-scale theory within the framework of nonaffine lattice dynamics to uncover the origin of the Johari-Goldstein (JG) -relaxation in metallic glasses (MGs). Com…
Universal origin of boson peak vibrational anomalies in ordered crystals and in amorphous materials
Matteo Baggioli, Alessio Zaccone
The vibrational spectra of solids, both ordered and amorphous, in the low-energy regime, control the thermal and transport properties of materials, from heat capacity to heat condu…
Disentangling and relaxation in orientationally disordered crystals with theory and experiments
B. Cui, J. Gebbia, J. -L. Tamarit +1
We use a microscopically motivated Generalized Langevin Equation (GLE) approach to link the vibrational density of states (VDOS) to the dielectric response of orientational glasses…
Generalized Langevin equation and fluctuation-dissipation theorem for particle-bath systems in external oscillating fields
Bingyu Cui, Alessio Zaccone
The Generalized Langevin Equation (GLE) can be derived from a particle-bath Hamiltonian, in both classical and quantum dynamics, and provides a route to the (both Markovian and non…
Single-molecule force spectroscopy with photoluminescent semiconducting polymers: Harnessing entropy
Alessio Zaccone
We discuss implications of a recent experimental breakthrough which uses a fluorescence-doped flexible semiconducting polymer to construct a single-molecule sensor which can detect…
Interpretation of the vibrational spectra of glassy polymers using coarse-grained simulations
Rico Milkus, Christopher Ness, Vladimir V. Palyulin +3
The structure and vibrational density of states (VDOS) of polymer glasses are investigated using numerical simulations based on the classical Kremer-Grest bead-spring model. We foc…