Pedrosa de jesus

• Nb-O-Pb-Sn
• Nb-O-Sn
• Ca-H-K-Na-O-Si-Y
• H-K-Na-O-Si-Y
• H-K-Na-O-Si-Sn
• structural properties
• magnetic properties
• resonance spectra
• nuclear magnetic resonance spectra
• values of Moessbauer spectra
• chalcogen
• transitional
• disordered
• nonmetal
• pyrochlore
• cubic
• monoclinic