Chalcogen, Transitional, Orthorhombic, Tc

• O-Sr-Tc
• O-Tc
• Ca-O-Tc
• Cs-O-Tc
• Cd-O-Tc
• thermal and thermodynamic properties
• structural properties
• electronic and electrical properties
• magnetic properties
• phase transitions
• transitional
• radioactive
• chalcogen
• non-disordered