TY  - JOUR
PB  - SciPost Foundation
DO  - 10.21468/SciPostPhys.15.2.069
TI  - Quasi-localized vibrational modes, boson peak and sound attenuation in model mass-spring networks
PY  - 2023/08/23
UR  - https://scipost.org/SciPostPhys.15.2.069
JF  - SciPost Physics
JA  - SciPost Phys.
VL  - 15
IS  - 2
SP  - 069
A1  - Mahajan, Shivam
AU  - Pica Ciamarra, Massimo
AB  - We introduce an algorithm that constructs disordered mass-spring networks whose elastic properties mimic that of glasses by tuning the fluctuations of the local elastic properties, keeping fixed connectivity and controlling the prestress. In two dimensions, the algorithm reproduces the dependence of glasses' vibrational properties, such as quasi-localised vibrational modes and Boson peak, on the degree of stability. The sound attenuation displays Rayleigh scattering and disorder-broadening regimes at different frequencies, and the attenuation rate decreases with increased stability. Our results establish a strong connection between the vibrational features of disordered solids and the fluctuations of the local elastic properties and provide a new approach to investigating glasses' vibrational anomalies.
ER  -

@Article{10.21468/SciPostPhys.15.2.069,
	title={{Quasi-localized vibrational modes, boson peak and sound attenuation in model mass-spring networks}},
	author={Shivam Mahajan and Massimo Pica Ciamarra},
	journal={SciPost Phys.},
	volume={15},
	pages={069},
	year={2023},
	publisher={SciPost},
	doi={10.21468/SciPostPhys.15.2.069},
	url={https://scipost.org/10.21468/SciPostPhys.15.2.069},
}