Karkut

• Mg-Nb-O-Pb
• Ba-Ca-Cu-O-Y
• Ba-O-Ti
• Bi-Fe-O
• Mg-Nb-O-Pb-Ti
• electronic and electrical properties
• permittivity (dielectric constant)
• structural properties
• sound velocity
• mechanical properties
• chalcogen
• transitional
• alkaline
• nonmetal
• quaternary
• tetragonal
• orthorhombic
• cubic
• monoclinic