Chalcogen, Disordered, Non-disordered, Khasanov

• Fe-Se
• Fe-Se-Te
• Bi-O-S
• Cu-Gd-O-Ru-Sr
• Fe-Te
• magnetic properties
• superconductivity
• structural properties
• resonance spectra
• muon spin spectra
• chalcogen
• disordered
• non-disordered
• transitional
• conductor
• tetragonal
• orthorhombic
• trigonal
• triclinic
• monoclinic