Ba-Cu-O-Y, Moessbauer spectra, Rare earth

• Ba-Cu-Fe-O-Y
• Ba-Ca-Cu-Fe-O-Y
• Ba-Co-Cu-O-Y
• Au-Ba-Cu-O-Y
• values of Moessbauer spectra
• isomer shift
• quadrupole splitting
• hyperfine magnetic field
• rare earth
• transitional
• alkaline
• chalcogen
• high-tc superconductor
• orthorhombic
• tetragonal