Neutron diffraction of liquid Sn-Se system

Keiji Itoh, Kenji Maruyama, Masakatsu Misawa, Shigeru Tamaki

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The time-of-flight neutron scattering measurements have been carried out for liquid Sn-Se system. A distinct change in structural properties has been observed between Sn70Se30 and Sn60Se40, composition of which corresponds to that of maximum of the miscibility gap. The atomic configuration of liquid SnSe have been compared to that of molten NaCl. It is found that the bonding nature between Sn and Se in liquid SnSe is ionic rather than covalent. A small but apparent pre-peak at Q = 1.2 Å-1 in the structure factor for liquid SnSe2 is found above the melting point. It suggests that the network structure remains after melting. The intensity of this pre-peak decreases with increasing temperature, indicating that the network structure is destroyed.

Original languageEnglish
Pages (from-to)1717-1722
Number of pages6
JournalJournal of the Physical Society of Japan
Volume69
Issue number6
Publication statusPublished - Jun 2000
Externally publishedYes

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neutron diffraction
liquids
miscibility gap
melting points
neutron scattering
melting
configurations
temperature

Keywords

  • Compound-formation
  • Liquid semiconductor
  • Liquid Sn-Se system
  • Network structure
  • Neutron scattering

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Itoh, K., Maruyama, K., Misawa, M., & Tamaki, S. (2000). Neutron diffraction of liquid Sn-Se system. Journal of the Physical Society of Japan, 69(6), 1717-1722.

Neutron diffraction of liquid Sn-Se system. / Itoh, Keiji; Maruyama, Kenji; Misawa, Masakatsu; Tamaki, Shigeru.

In: Journal of the Physical Society of Japan, Vol. 69, No. 6, 06.2000, p. 1717-1722.

Research output: Contribution to journalArticle

Itoh, K, Maruyama, K, Misawa, M & Tamaki, S 2000, 'Neutron diffraction of liquid Sn-Se system', Journal of the Physical Society of Japan, vol. 69, no. 6, pp. 1717-1722.
Itoh K, Maruyama K, Misawa M, Tamaki S. Neutron diffraction of liquid Sn-Se system. Journal of the Physical Society of Japan. 2000 Jun;69(6):1717-1722.
Itoh, Keiji ; Maruyama, Kenji ; Misawa, Masakatsu ; Tamaki, Shigeru. / Neutron diffraction of liquid Sn-Se system. In: Journal of the Physical Society of Japan. 2000 ; Vol. 69, No. 6. pp. 1717-1722.
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AB - The time-of-flight neutron scattering measurements have been carried out for liquid Sn-Se system. A distinct change in structural properties has been observed between Sn70Se30 and Sn60Se40, composition of which corresponds to that of maximum of the miscibility gap. The atomic configuration of liquid SnSe have been compared to that of molten NaCl. It is found that the bonding nature between Sn and Se in liquid SnSe is ionic rather than covalent. A small but apparent pre-peak at Q = 1.2 Å-1 in the structure factor for liquid SnSe2 is found above the melting point. It suggests that the network structure remains after melting. The intensity of this pre-peak decreases with increasing temperature, indicating that the network structure is destroyed.

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