Journal ArticleDOI
Boson peak and terahertz frequency dynamics of vitreous silica
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In this article, the authors describe the progress that has been made in the past decade in the investigation of the peculiar dynamic properties of vitreous silica (v-SiO2) and related glasses in the terahertz (THz) frequency range.Abstract:
This paper describes the progress that has been made in the past decade in the investigation of the peculiar dynamic properties of vitreous silica (v-SiO2) and related glasses in the terahertz (THz) frequency range. The reason why we focus our attention on v-SiO2 is that it is one of the principal network glasses and exhibits all features typical of glasses. These are the increased inelastic scattering of light and neutrons at THz frequencies, the so-called Boson or Bose peak, as well as unusual thermal properties such as specific heats and thermal conductivities at low temperatures. During the last decade, experimental techniques such as the inelastic scattering of light, neutrons and x-rays have been greatly improved, and these have provided considerable experimental information about the atomic vibrations in v-SiO2 and related glasses in the THz frequency region. In addition, molecular dynamics simulations have proved successful for these complex systems. They form the basis for this perspective on the major advances in this decade from a new and tutorial point of view.read more
Citations
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Journal ArticleDOI
Phonon-glass electron-crystal thermoelectric clathrates : Experiments and theory
Toshiro Takabatake,Koichiro Suekuni,Tsuneyoshi Nakayama,Tsuneyoshi Nakayama,Tsuneyoshi Nakayama,Eiji Kaneshita +5 more
TL;DR: A survey of a wide range of experimental investigations of type-I clathrate compounds, together with a review of theoretical interpretations of the peculiar thermal and dynamic properties observed in these materials can be found in this paper.
Journal ArticleDOI
Effects of compression on the vibrational modes of marginally jammed solids.
TL;DR: The requirement of stability despite the destabilizing effect of pressure yields a lower bound on the number of extra contact per particle deltaz:deltaz> or =p1/2, which generalizes the Maxwell criterion for rigidity when pressure is present.
Journal ArticleDOI
On the rigidity of amorphous solids
TL;DR: In this article, it was shown that elastic particles present a large excess of vibrational modes at low frequency in comparison with normal solids, called the "boson peak" in the glass literature, and that rigidity is a non-local property of the packing geometry.
Journal ArticleDOI
Dynamic relaxations and relaxation-property relationships in metallic glasses
Weihua Wang,Weihua Wang +1 more
TL;DR: A review of the state of the art of dynamic relaxation in metallic glassy system, as well as a comparison with other glassy systems, is presented in this paper, where the correlation between dynamic relaxation and various properties of MGs are established and summarized.
Journal ArticleDOI
Low-frequency vibrational modes of stable glasses
TL;DR: This work reports on D(ω) of zero-temperature glasses with kinetic stabilities ranging from poorly annealed to ultrastable glasses, and establishes a direct connection between glasses’ stability and their soft vibrational modes.
References
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Book
Dynamical Theory of Crystal Lattices
Max Born,Kʿun Huang +1 more
TL;DR: Born and Huang's classic work on the dynamics of crystal lattices was published over thirty years ago, and it remains the definitive treatment of the subject as mentioned in this paper. But it is not the most complete work on crystal lattice dynamics.
Journal ArticleDOI
Scaling Theory of Localization: Absence of Quantum Diffusion in Two Dimensions
TL;DR: In this paper, it was shown that the conductance of disordered electronic systems depends on their length scale in a universal manner, and asymptotic forms for the scaling function were obtained for both two-dimensional and three-dimensional systems.
Book
The physics of rubber elasticity
TL;DR: In this paper, the Elasticity of Long-Chain Molecules (LCHs) and Elasticity in a Molecular Network (MNNs) is investigated. But the authors focus on the elasticity of the long chain Molecules.
Journal ArticleDOI
Formation of glasses from liquids and biopolymers.
TL;DR: The onset of a sharp change in ddT( is the Debye-Waller factor and T is temperature) in proteins, which is controversially indentified with the glass transition in liquids, is shown to be general for glass formers and observable in computer simulations of strong and fragile ionic liquids, where it proves to be close to the experimental glass transition temperature.
Journal ArticleDOI
Anomalous low-temperature thermal properties of glasses and spin glasses
TL;DR: In this article, a linear specific heat at low temperatures for glass follows naturally from general considerations on the glassy state, and the experimentally observed anomalous low-temperature thermal conductivity is predicted.
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