Boson-peak-like anomaly caused by transverse phonon softening in strain glass
Sign Up to like & getrecommendations! Published in 2021 at "Nature Communications"
DOI: 10.1038/s41467-021-26029-w
Abstract: Strain glass is a glassy state with frozen ferroelastic/martensitic nanodomains in shape memory alloys, yet its nature remains unclear. Here, we report a glassy feature in strain glass that was thought to be only present… read more here.
Keywords: like anomaly; glass; boson peak; strain glass ... See more keywords
Universal behavior of low-temperature heat capacity of acrylonitrile-butadiene-styrene thermoplastic polymer and its composite with graphene oxide
Sign Up to like & getrecommendations! Published in 2023 at "Low Temperature Physics"
DOI: 10.1063/10.0017821
Abstract: The low-temperature dependence of the heat capacity of acrylonitrile-butadiene-styrene (ABS) polymer and its composite with thermally reduced graphene oxide was studied. The existence of a so-called “boson peak” characteristic of orientational and structural glasses was… read more here.
Keywords: boson peak; heat capacity; heat; low temperature ... See more keywords
Upper bound of fragility from spatial fluctuations of shear modulus and boson peak in glasses.
Sign Up to like & getrecommendations! Published in 2022 at "Physical review. E"
DOI: 10.1103/physreve.106.024611
Abstract: It is shown that the normalized rms fluctuation of the shear modulus on the medium-range order scale in glasses correlates with fragility: the higher fragility, the smaller the fluctuation amplitude. The latter is calculated within… read more here.
Keywords: shear modulus; fragility; peak glasses; boson peak ... See more keywords
Universal relationship of boson peak with Debye level and Debye-Waller factor in disordered materials
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review Materials"
DOI: 10.1103/physrevmaterials.4.095603
Abstract: Due to the topological disorder, glass displays an anomalous vibrational density of states beyond the Debye model, i.e., formation of boson peaks, which is fundamental for understanding many glassy physical properties. However, the understanding of… read more here.
Keywords: debye waller; waller factor; boson; boson peak ... See more keywords