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Elastic and Photoelastic Properties of M(NO3)(2),MO (M =3D Mg,Ca,Sr,Ba)

Author:
Zhuravlev, Yu. N.  Korabel'nikov, D. V.  


Journal:
RUSSIAN PHYSICS JOURNAL


Issue Date:
2017


Abstract(summary):

The paper deals with ab initio investigations of elastic and photoelastic properties of oxides and nitrates of alkaline-earth metals. In gradient approximation of the density functional theory (DFT), these properties are studied with the use of the linear combination of the atomic orbital technique. DFT calculations are done with the CRYSTAL 14 software package. The paper introduces the elastic and photoelastic constants, anisotropy parameters for single-crystalline phases and the elastic modules, hardness, Poisson ratio for polycrystalline phases. Such parameters as sonic speed, Debye temperature, thermal conductivity, and Gruneisen parameter are estimated herein. For the fist time, mechanical stability, anisotropy of elastic and photoelastic properties and their dependences are investigated ab initio in this paper. Experimental results on elastic and photoelastic properties of oxides and nitrates are in good agreement with theoretical calculations.


Page:
149---156


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