Abstract
The Born–Mayer potential has been employed to predict the phase transition pressure in four strontium monochalcogenides, namely, SrO, SrS, SrSe, and SrTe, which crystallize in the NaCl (B1) phase and with the application of pressure, transforms to the CsCl (B2) phase. The compression, bulk modulus and the first-order pressure derivative of bulk modulus have also been calculated and compared with the available experimental and other theoretical results. The calculated values of transition pressure and other elastic properties predict that the hardness and strength parameters depend on the crystal structure and have the different values for different structures.
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