The Role of Phonons in Stability of Metallic Nanoparticles
The material was received by the Editorial Board: 23.03.2020
Abstract A novel model of a metallic nanoparticle is proposed. The model represents the nanoparticle as a hollow sphere. The existence of a nanohollow inside a particle is related to the behavior of phonons. The strain in the walls of a particle when it's heated is calculated utilizing the theory of a thick-walled shell. We show that in the transition to the elastic state, the expansion strains at the surface of a nanoparticle become sufficient for melting. The dependency of melting temperature on the size of a nanoparticle is discussed.
Keywords
metallic nanoparticles, atomic oscillations, phonons, shells
УДК 532.6: 546.22
The Role of Phonons in Stability of Metallic Nanoparticles (RUS)References: Orlov V. L., Orlov A. V. The Role of Phonons in Stability of Metallic Nanoparticles. Siberian Journal of Physics . 2020, vol. 15, no. 2. P. 97–104. (in Russ.). DOI: 10.25205/2541-9447-2020-15-2-97-104