Elastic Parameter and Properties of Ytterbium Chalcogenides (YbS, YbSe, and YbTe)

บทคัดย่อ

The present paper reports the numerical analysis of elastic parameter such as shear constant stiffness constant, shear modulus Reuss shear modulus, Youngs modulus and Poisons ratio and elastic anisotropy factor of Ytterbium chalcogenides. The theory has been   evolved in order to understand the mechanical phase transition phenomenon in Ytterbium chalcogenides. The formulae are derived and used to obtained numerical values of different related parameters and rock salt structure which are useful to describe the phase transition event. The calculated values are in close agreement with the experimental results.