Dispersion relations of the acoustic modes in divalent liquid metals Masanori Inui, Yukio Kajihara, Koji Kimura, Kazuhiro Matsuda, Tetsu Miyatake, Ayano Chiba, Shinya Hosokawa, Satoshi Tsutsui and Alfred Q. R. Baron EPJ Web Conf., 151 (2017) 06002 Published online: 21 August 2017 DOI: 10.1051/epjconf/201715106002