Podol's'kyj O. The influence of orientational relaxation of the molecules on the thermodynamic and mechanical properties of the low-temperature phase of fullerite C60

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0401U001512

Thesis Registration Form

0401U001512.pdf

Applicant for

Specialization

  • 01.04.07 - Фізика твердого тіла

24-04-2001

Specialized Academic Board

Д. 64.175.03

Essay

Objects: Crystal of fullerite С60 and orientational relaxation of molecules in the low-temperature phase of fullerite. Goals: Calculation and analysis of the contribution to the thermodynamic and mechanical characteristics of fullerite С60 due to orientational relaxation of molecules. Methods: computational methods of mathematical physics, methods of theory of elasticity, thermodynamics and statistical mechanics. New results: The contribution of the orientational states of the molecules to the basic physical properties of the low-temperature phase of fullerite C60, such as orientational glass transition, heat capacity, thermal expansion, velocity and damping of elastic vibrations, mobility of dislocations is calculated on the unified basis. The anomalies of the thermodynamic characteristics of fullerite near the glass transition temperature are described.

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