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(Sr0.67Bi0.33)3Fe2(Pb0.25Bi0.75)2O9.30 tI32 139
Bi-Fe-O-Pb-Sr
Fe-O-Pb-Sr
magnetic properties
Moessbauer spectra
structural properties
electronic and electrical properties
optical properties
alkaline
high-tc superconductor
cuprate
chalcogen
transitional
tetragonal