Tsukuma

• O-Y-Zr
• O-Zr
• Fe-S
• Cs-H-O-Ru-Si-W
• Nb-S-Se
• structural properties
• phase diagram
• values of superconducting transition temperature
• superconducting transition temperature
• chalcogen
• transitional
• disordered
• oxide
• conductor
• tetragonal
• triclinic
• cubic