306 citations · 4.2k across the 116 of their papers we have counts for
14 papers · 1 filter
Superconducting dome in ferroelectric-type materials from soft mode instability
Chandan Setty, Matteo Baggioli, Alessio Zaccone
We present a minimal theory of superconductivity enhancement in ferroelectric-type materials. Simple expressions for the optical mode responsible for the soft mode transition are a…
The scaling of the vibrational density of states in quasi-2D nanoconfined solids
Yuanxi Yu, Chenxing Yang, Matteo Baggioli +7
Atomic vibrations play a vital role in the functions of various physical, chemical, and biological systems. The vibrational properties and the specific heat of crystalline bulk mat…
Dynamical indistinguishability and statistics in quantum fluids
Alessio Zaccone, Kostya Trachenko
For a system to qualify as a quantum fluid, quantum-statistical effects should operate in addition to quantum-mechanical ones. Here, we address the hitherto unexplored dynamical co…
Relativistic Langevin Equation derived from a particle-bath Lagrangian
Aleksandr Petrosyan, Alessio Zaccone
We show how a relativistic Langevin equation can be derived from a Lorentz-covariant version of the Caldeira-Leggett particle-bath Lagrangian. In one of its limits, we identify the…
Impact of high pressure on reversible structural relaxation of metallic glass
Nguyen K. Ngan, Anh D. Phan, Alessio Zaccone
We theoretically investigate the temperature dependence of the reversible structural relaxation time and diffusion constant of metallic glasses under pressure. The compression not…
Sound attenuation derived from quenched disorder in solids
Bingyu Cui, Alessio Zaccone, Eugene Terentjev
In scattering experiments, the dynamical structure factor (DSF) characterizes inter-particle correlations and their time evolution. We analytically evaluated the DSF of disordered…
Predicting plasticity of amorphous solids from instantaneous normal modes
Ivan Kriuchevksyi, Tim Sirk, Alessio Zaccone
We present a mathematical description of amorphous solid deformation and plasticity by extending the concept of instantaneous normal modes (INMs) to deformed systems, which allows…
Reply to Shvaika et al.: Presence of a boson peak in anharmonic phonon models with Akhiezer-type damping
Matteo Baggioli, Alessio Zaccone
We reply to the Comment by Svhaika, Ruocco, Schirmacher and collaborators. There were two accidental mistakes in our original paper (Phys. Rev. Lett. 112, 145501 (2019)), which hav…
Correlation between vibrational anomalies and emergent anharmonicity of local potential energy landscape in metallic glasses
Zeng-Yu Yang, Yun-Jiang Wang, Alessio Zaccone
The boson peak (BP) is a universal feature in the Raman and inelastic scattering spectra of both disordered and crystalline materials. The current paradigm presents the boson peak…
Soft mode theory of ferroelectric phase transitions in the low-temperature phase
Luigi Casella, Alessio Zaccone
Historically, the soft mode theory of ferroelectric phase transitions has been developed for the high-temperature (paraelectric) phase, where the phonon mode softens upon decreasin…
Universal law for the vibrational density of states of liquids
Alessio Zaccone, Matteo Baggioli
An analytical derivation of the vibrational density of states (DOS) of liquids, and in particular of its characteristic linear in frequency low-energy regime, has always been elusi…
Explaining the specific heat of liquids based on instantaneous normal modes
Matteo Baggioli, Alessio Zaccone
The successful prediction of the specific heat of solids is a milestone in the kinetic theory of matter, due to Debye (1912). No such success, however, has ever been obtained for t…
Plasticity in amorphous solids is mediated by topological defects in the displacement field
Matteo Baggioli, Ivan Kriuchevskyi, Timothy W. Sirk +1
The microscopic mechanism by which amorphous solids yield plastically under an externally applied stress or deformation has remained elusive in spite of enormous research activity…
Deformations, relaxation and broken symmetries in liquids, solids and glasses: a unified topological field theory
Matteo Baggioli, Michael Landry, Alessio Zaccone
We combine hydrodynamic and field theoretic methods to develop a general theory of phonons as Goldstone bosons in crystals, glasses and liquids based on non-affine displacements an…