Metallization and Structural Transition of Se Allotropies under Pressure.

• Akahama Y.

  Faculty of Science, Himeji Institute of Technology

• Kobayashi M.

  Faculty of Science, Himeji Institute of Technology

• Kawamura H.

  Faculty of Science, Himeji Institute of Technology

書誌事項

タイトル別名

• Metallization and Structural Transition

抄録

Electrical resistance measurements, x-ray diffraction and Raman scattering experiments have been carried out under high pressure for Se allotropies. α-monoclinic Se showed a transition to the metallic state at 12 GPa, which was considerably lower than 23 GPa of trigonal Se. Corresponding to the metallization, a structural transition to a new high-pressure phase, which could not be explained by any metallic phase of Se reported previously, was observed in α-monoclinic Se. Raman data supported this result. In amorphous Se, crystallization was observed at 12 GPa. The diffraction pattern after crystallization was explained as the coexistence of the new high-pressure phase and trigonal Se. These results have established the double nature of the sequence of the structure in the pressure-induced phase transition of Se.

収録刊行物

• 高圧力の科学と技術

  高圧力の科学と技術 7 289-291, 1998

  日本高圧力学会

キーワード

• selenium
• amorphous
• high pressure
• metallization
• phase transition
• x-ray diffraction
• Raman scattering
• crystallization

詳細情報

• CRID: 1390282679358251904
• NII論文ID: 10002689813
• NII書誌ID: AN10452913
• DOI: 10.4131/jshpreview.7.289
• ISSN: 13481940
• ISSN: 0917639X
• NDL書誌ID: 4493906
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4493906
• 本文言語コード: en
• データソース種別:
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