Instabilities govern the low-frequency vibrational spectrum of amorphous solids

• Published in: The Journal of chemical physics Vol. 163; no. 2
• Main Authors: Chakraborty, Surajit, Maharana, Roshan, Karmakar, Smarajit, Ramola, Kabir
• Format: Journal Article
• Language: English
• Published: United States 14.07.2025

Amorphous solids exhibit an excess of low-frequency modes in their vibrational density of states (VDoS) beyond the Debye prediction, contributing to their anomalous mechanical and thermal properties. Recently a power-law behavior has been observed in the low frequency regime of their VDoS; however,...