Non-disordered, Orthorhombic, Sound velocity

• Ba-Cu-O-Y
• Cl-Cs-Hg
• Ba-Cu-Gd-O
• Br-Cd-Cs
• Co-Gd
• values of sound velocity
• longitudinal sound velocity
• transverse sound velocity
• non-disordered
• chalcogen
• transitional
• rare earth
• disordered