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Investigation of the impact of hydrostatic stress on mechanical, optical, and structural properties of cubic SrSnO₃

S. M. JUNAID ZAIDI1, WASEEM AMIN2, ALI ABDULLAH3, MUHAMMAD UMER FAROOQ4, NAEEM ULLAH5, M. SANA ULLAH SAHAR6, M. IJAZ KHAN4,*

Affiliation

  1. Department of Physics and Mathematics, Faculty of Sciences, Superior University, Lahore 54000, Pakistan
  2. Institute of Metallurgy and Materials Engineering, University of the Punjab, 54801, Lahore, Pakistan
  3. Department of Physics, University of Management and Technology, Sialkot Campus, Sialkot,51310, Pakistan
  4. Institute of Mechanical and Manufacturing Engineering, Khwaja Fareed UEIT, Rahim Yar Khan, 64200, Pakistan
  5. Department of Mechanical Engineering Technology, Punjab Tianjin University of Technology, Lahore 54770, Pakistan
  6. Department of Mechanical Engineering, University of Sargodha, Sargodha - 40100, Pakistan

Abstract

This study comprehensively explored the various characteristics of SrSnO₃ when subjected to a mechanical load with the help of an ultrasoft pseudopotential (USP) and the generalized gradient approximation (GGA). The crystal lattice remains cubic, but a significant decrease of 11% in the lattice parameters and a 29% decrease in the lattice volume are observed. Moreover, no phase transformation is observed. The mechanical load not only affects the electronic structure but also impacts the way the material responds to optical load, including properties such as reflectivity, refractive index, absorption, energy loss function, and complex dielectric function. The increase in the absorption peak and the shift of these peaks to higher energies confirm the occurrence of a blue shift, which renders this material an attractive aspirant for optoelectronic applications. Furthermore, the material is inflexible, rigid, and mechanically stable and shows high resistance to shear deformation, which is confirmed by computing various mechanical parameters, including the Young, shear, and bulk moduli. Moreover, the Cauchy pressure, Pugh/Frantsevich ratio, and Poisson’s ratio revealed the metallic bond structure, ductile behavior, and high-pressure strength of the material. The electronic band structure (BS) of SrSnO₃ changes from a narrow band (0.135 eV) to a wide band (4.682 eV). The total, partial, and elemental partial density of states (TDOS/PDOS) were recorded for the analysis of the electronic band structure. It is the best material to be utilized as an ultraviolet filter since its absorption spectra are present in the UV range. Moreover, its absorption, high conductivity, refractive index, and reflectivity make it an exceptional component in optoelectronic devices..

Keywords

Perovskite, Band gap, Elastic constants, Mechanical properties, Optical properties.

Submitted at: March 13, 2025
Accepted at: Feb. 4, 2026

Citation

S. M. JUNAID ZAIDI, WASEEM AMIN, ALI ABDULLAH, MUHAMMAD UMER FAROOQ, NAEEM ULLAH, M. SANA ULLAH SAHAR, M. IJAZ KHAN, Investigation of the impact of hydrostatic stress on mechanical, optical, and structural properties of cubic SrSnO₃, Journal of Optoelectronics and Advanced Materials Vol. 28, Iss. 1-2, pp. 51-58 (2026)