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Chalcogen, Critical current density - external magnetic field diagram
Ba-Cu-O-Y
Fe-Se-Te
Bi-Ca-Cu-O-Sr
Bi-Ca-Cu-O-Pb-Sr
Ba-Cu-O-Sm
chalcogen
transitional
disordered
alkaline
high-tc superconductor
orthorhombic
tetragonal
monoclinic
trigonal