Chalcogen, Tetragonal bronze, Elastic moduli

• Ba-Fe-Gd-Nb-O
• K-Nb-O-Pb
• K-Nb-O
• Ba-Nb-O-Sm-Ti
• O-Sr-Ta
• isothermal bulk modulus
• pressure derivative of isothermal bulk modulus
• oxide
• transitional
• tetragonal bronze
• chalcogen
• tetragonal
• orthorhombic