The Physics Society of Iran Iranian Journal of Physics Research 1682-6957 15 1 2019 11 26 Ab-initio investigation of structural, electronic and optical properties BSb compound in bulk and surface (110) states Ab-initio investigation of structural, electronic and optical properties BSb compound in bulk and surface (110) states 1 8 1116 10.18869/acadpub.ijpr.15.1.1 FA H A Badehian H Salehi M Farbod 0000-0002-9774-705X Journal Article 2019 11 26 In recent work the structural, electronic and optical properties of BSb compound in bulk and surface (110) states have been studied. Calculations have been performed using Full-Potential Augmented Plane Wave (FP-LAPW) method by WIEN2k code in Density Functional Theory (DFT) framework. The structural properties of the bulk such as lattice constant, bulk module and elastic constants have been investigated using four different approximations. The band gap energy of the bulk and the (110) surface of BSb were obtained about 1.082 and 0.38 eV respectively. Moreover the surface energy, the work function, the surface relaxation, surface state and the band structure of BSb (110) were investigated using symmetric and stoichiometric 15 layers slabs with the vacuum of 20 Bohr. In addition, the real and imaginary parts of the dielectric function of the bulk and the BSb (110) slab were calculated and compared to each other. Our obtained results have a good agreement with the available results. In recent work the structural, electronic and optical properties of BSb compound in bulk and surface (110) states have been studied. Calculations have been performed using Full-Potential Augmented Plane Wave (FP-LAPW) method by WIEN2k code in Density Functional Theory (DFT) framework. The structural properties of the bulk such as lattice constant, bulk module and elastic constants have been investigated using four different approximations. The band gap energy of the bulk and the (110) surface of BSb were obtained about 1.082 and 0.38 eV respectively. Moreover the surface energy, the work function, the surface relaxation, surface state and the band structure of BSb (110) were investigated using symmetric and stoichiometric 15 layers slabs with the vacuum of 20 Bohr. In addition, the real and imaginary parts of the dielectric function of the bulk and the BSb (110) slab were calculated and compared to each other. Our obtained results have a good agreement with the available results. https://ijpr.iut.ac.ir/article_1116_dd77279f7d325eec933f05b1672f6a1f.pdf