Raman Studies of Silicon Clathrate Compounds under High Pressure

• KUME Tetsuji

  Department of Materials Science and Technology, Gifu University

Bibliographic Information

Other Title

• シリコンクラスレート化合物の超高圧ラマン散乱
• シリコンクラスレート カゴウブツ ノ チョウコウアツ ラマン サンラン

Abstract

This article shows the recent Raman studies for type I silicon clathrates doped with Ba, K, and I atoms under high pressure at room temperature. The obtained Raman spectra indicate vibrational signals related with guest atoms encaged in the Si cages in a frequency region lower than 100 cm^-1. In order to explore the pressure-induced phase transition, the Raman spectra were measured for the Si clathrates under high pressures using a diamond anvil cell. The spectral changes associated with the phase transition were observed, and the mechanisms of the phase transition were discussed on the basis of the spectral changes.

Journal

• The Review of High Pressure Science and Technology

  The Review of High Pressure Science and Technology 14 (2), 167-172, 2004

  The Japan Society of High Pressure Science and Technology

Keywords

• silicon clathrate
• Raman scattering spectroscopy
• phase transition
• DAC
• cage structure

Details

• CRID: 1390001204380575872
• NII Article ID: 10013361965
• NII Book ID: AN10452913
• DOI: 10.4131/jshpreview.14.167
• COI: 1:CAS:528:DC%2BD2cXntV2qsLo%3D
• ISSN: 13481940
• ISSN: 0917639X
• NDL BIB ID: 7040812
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I7040812
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed