Chalcogen, Conductor, Metal, Transitional, Karpinski

• Ba-Cu-O-Y
• As-F-Fe-O-Sm
• K-O-Os
• As-Fe-O-Sm
• As-F-Fe-Nd-O
• superconductivity
• structural properties
• superconducting transition temperature
• values of superconducting transition temperature
• magnetic properties
• metal
• transitional
• chalcogen
• conductor
• oxide
• orthorhombic
• tetragonal
• cubic
• hexagonal
• triclinic