Abstract
Expressions for the calculation of the thermodynamic potential, enthalpy, entropy s v, and volume of vacancy formation in a simple crystal at temperatures close to absolute zero are derived. It is established that the vacancy concentration Φ as a function of the temperature T exhibits a minimum at a certain temperature T 0. At T<T 0, the Φ(T) function increases with decreasing temperature; the s v(T) value changes sign at T=T 0 and is negative at T<T 0. It is shown that the existence of the “zero-point vacancies” does not violate the third law of thermodynamics. Three new effects are predicted, and the prospects for their experimental observation are considered.
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Translated from Pis’ma v Zhurnal Tekhnichesko\(j_k \sim 1/\sqrt[4]{\tau }\) Fiziki, Vol. 27, No. 18, 2001, pp. 36–42.
Original Russian Text Copyright © 2001 by Magomedov.
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Magomedov, M.N. The features of vacancy formation at low temperatures. Tech. Phys. Lett. 27, 773–775 (2001). https://doi.org/10.1134/1.1407355
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DOI: https://doi.org/10.1134/1.1407355