Elastic properties of solids at high pressure
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Authors
Vekilov, Y.
Krasilnikov, O.
Lugovskoy, Andrey
Date
2015Type
Journal Article
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Vekilov, Y. and Krasilnikov, O. and Lugovskoy, A. 2015. Elastic properties of solids at high pressure. Physics-Uspekhi. 58 (11): pp. 1106-1114.
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Physics-Uspekhi
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School
Department of Physics and Astronomy
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Abstract
© 2015 Uspekhi Fizicheskikh Nauk, Russian Academy of Sciences.This review examines the elastic response of solids under load. The definitions of isothermal and adiabatic elastic constants of nth order (n=2) for a loaded crystal are given. For the case of hydrostatic pressure, two techniques are proposed for calculating the second-, third-, and fourth-order elastic constants from the energy-strain and stress-strain relations. As an example, using the proposed approach within the frame- work of the density functional theory, the second- to fourth- order elastic constants of bcc tungsten are calculated for the pressure range of 0-600 GPa.
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