PbO oS8 67

• Fe-Se
• Fe-Se-Te
• O-Pb
• Fe-Se-Si
• Fe-Sb-Se
• superconductivity
• magnetic properties
• electronic and electrical properties
• superconducting transition temperature
• values of superconducting transition temperature
• chalcogen
• metal
• transitional
• diamagnetic
• binary
• orthorhombic