Programme

P.19 -- Poster, VCTP-45

Date: Tuesday, 13 October 2020

Time: 08:30 - 10:00

Study on anharmonic effects in the material with the cubic crystal structure by an analytic statistical moment method.

Cao Huy Phuong

Hung Vuong University

Vibrations of atoms or ions around the lattice points are inhamonic that cause the thermodynamic effects for the materials with the crystal structure. Using the moment stastical method in the stastical physics, within the fourth order moment approximation, we have found out that the change of the length, volume and shape of the material with the cubic crystal structure are determined by the anharmonic effect. Increasing temperature leads to the more strong anharmonic lattice vibrations that cause changing size of the material.

Presenter: Cao Huy Phương

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