Ismat shah

• Bi-Fe-O-Sr
• C-O-Zn
• O-Zn
• Co-Fe-O
• Bi-Fe-O
• structural properties
• electronic and electrical properties
• optical properties
• optical spectra
• X-ray photoemission spectra
• transitional
• chalcogen
• disordered
• ferromagnetic
• ternary
• cubic
• hexagonal
• trigonal