X-ray compton scattering study of liquid germanium and tin

Koji Kimura, Kazuhiro Matsuda, Takena Nagao, Toru Hagiya, Yukio Kajihara, Masanori Inui, Jumpei Nakamura, Ayano Chiba, Kouichi Hayashi, Masayoshi Itou, Yoshiharu Sakurai

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X-ray Compton scattering measurements have been carried out on germanium (Ge) and tin (Sn) in the solid and liquid states. While the shape of the Compton profiles (CPs) of Ge reflects the semiconductor-to-metal transition upon melting, it was found that even for Sn, which remains metallic during the solid–liquid phase transition, the shape of the CP in the liquid state exhibits more metallic characteristics than that in the solid state. The experimentally derived Fermi momenta of liquid Ge and Sn have systematically higher values than those of the electron gas at corresponding electron densities, which indicates a non-simple metallic nature of the group IV elements in the liquid state.

Original languageEnglish
Article number124703
JournalJournal of the Physical Society of Japan
Issue number12
Publication statusPublished - 2017 Dec 15

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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