Unified theory of vibrational spectra in hard amorphous materials
M. Baggioli, A. Zaccone
Abstract
The authors propose a theory to account for the vibrational density of states in amorphous materials, that accounts for the onset of the boson peak as well as the higher-energy part of the spectrum dominated by van Hove singularities smeared by disorder.
Topics & Concepts
Gravitational singularityDensity functional theoryAmorphous solidPhysicsCondensed matter physicsSpectrum (functional analysis)Unified ModelUnified field theorySpectral lineDensity of statesMaterials scienceVibrational spectrumQuantum mechanicsTheoretical physicsStatistical physicsBosonMolecular vibrationThermal properties of materialsMaterial Dynamics and PropertiesAdvanced Physical and Chemical Molecular Interactions