Pressure-induced structural changes of liquid arsenic and liquid IV-VI compounds

Ayano Chiba, Kazuhiko Tsuji

研究成果: Article

抄録

In this article, we review some recent advances in the studies of the pressure-induced structural changes in liquid arsenic and liquid IV-VI compounds. For liquid As, the A7-like local structure has been experimentally observed and attributed to a "Peierls distortion in the liquid state". Most recently the suppression of the distortion has been observed at high pressures. We also observed the similar pressure dependence in liquid GeS, GeSe, and GeTe, where their structures are distorted at low pressures. We describe the pressure-induced suppression of Peierls-type distortion in these liquids, and show the differences between liquid and crystalline states.

元の言語English
ページ(範囲)335-342
ページ数8
ジャーナルReview of High Pressure Science and Technology/Koatsuryoku No Kagaku To Gijutsu
18
発行部数4
DOI
出版物ステータスPublished - 2008

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Arsenic
arsenic
Liquids
liquids
retarding
pressure dependence
low pressure
Crystalline materials

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Materials Science(all)
  • Chemistry(all)

これを引用

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abstract = "In this article, we review some recent advances in the studies of the pressure-induced structural changes in liquid arsenic and liquid IV-VI compounds. For liquid As, the A7-like local structure has been experimentally observed and attributed to a {"}Peierls distortion in the liquid state{"}. Most recently the suppression of the distortion has been observed at high pressures. We also observed the similar pressure dependence in liquid GeS, GeSe, and GeTe, where their structures are distorted at low pressures. We describe the pressure-induced suppression of Peierls-type distortion in these liquids, and show the differences between liquid and crystalline states.",
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AB - In this article, we review some recent advances in the studies of the pressure-induced structural changes in liquid arsenic and liquid IV-VI compounds. For liquid As, the A7-like local structure has been experimentally observed and attributed to a "Peierls distortion in the liquid state". Most recently the suppression of the distortion has been observed at high pressures. We also observed the similar pressure dependence in liquid GeS, GeSe, and GeTe, where their structures are distorted at low pressures. We describe the pressure-induced suppression of Peierls-type distortion in these liquids, and show the differences between liquid and crystalline states.

KW - Liquid

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KW - Phase transitions

KW - Structure

KW - Synchrotron radiation

KW - X-ray diffraction

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