), bond-bending force parameter(\beta \,), internal-strain parameter(\xi ), effective charge (Z*) and the transverse effective charge(e_{T}^{*} )of Al0.5In0.5P at various values of temperature and pressure are
O A AlfrnwaniDepartment of Physics, Faculty of Science, Mansoura University, Mansoura, EgyptElkenany B ElkenanyDepartment of Physics, Faculty of Science, Mansoura University, Mansoura, EgyptIndian Academy of SciencesBulletin of Materials Science