Vibrational instability, two-level systems and Boson peak in glassesReport as inadecuate



 Vibrational instability, two-level systems and Boson peak in glasses


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We show that the same physical mechanism is fundamental for two seemingly different phenomena such as the formation of two-level systems in glasses and the Boson peak in the reduced density of low-frequency vibrational states gw-w^2. This mechanism is the vibrational instability of weakly interacting harmonic modes. Below some frequency w c



Author: D. A. Parshin; V. L. Gurevich; H. R. Schober

Source: https://archive.org/







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