Physics of the Solid State
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- 2022
On the derivation of the Belomestnykh--Tesleva's formula
Darmaev M.V.
1,2, Sangadiev S.Sh.
1, Mashanov A.A.
1, Kim T.B.
1
1Banzarov Buryat State University, Ulan-Ude, Russia
2Physical Material Science Institute, Siberian Branch, Russian Academy of Sciences, Ulan-Ude, Russia
2Physical Material Science Institute, Siberian Branch, Russian Academy of Sciences, Ulan-Ude, Russia
Email: darmaev@bsu.ru
The Belomestnykh-Tesleva's formula is interesting in that it establishes an unambiguous relationship between the Poisson's ratio and the Gruneisen's parameter. The derivation of this formula from the generally accepted Gruneisen's equation is discussed. The Belomestnykh-Tesleva's formula, obtained earlier from other assumptions, is derived using the theory of elasticity and the Leontiev's equation. For a number of silicate glasses and glassy metaphosphates of alkaline earth metals, the proposed approach finds a fairly satisfactory agreement with the experimental data. Keywords: Gruneisen's equation, Gruneisen's parameter, Poisson's ratio, shear modulus, isothermal bulk modulus, acoustic wave velocities.
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