Structural Study of Layered PbFCl-Type Compounds.

• Decremps F.

  Physique des Milieux Condensés, Université P. & M.

• Fischer M.

  Physique des Milieux Condensés, Université P. & M.

• Polian A.

  Physique des Milieux Condensés, Université P. & M.

• Sieskind M.

  CNRS , Laboratoire PHASE

Bibliographic Information

Other Title

• Structural Study of Layered PbFCl Type

Abstract

The pressure dependence of the longitudinal acoustic mode corresponding to the elastic constant C₃₃ of the matlockite layered ionic compounds BaFX (X= Cl, Br or I) has been studied by Brillouin spectroscopy in a diamond anvil cell. All the measurements have been performed up to 20 GPa. The difference of the elastic response between the BaFX compounds is attributed to the distortion of the X electron charge density of the highly polarizable anions. This phenomenon is related to the large static dipole at the X anion and involves an energy contribution U_pol which seems to stabilize the layered structure.

Journal

• The Review of High Pressure Science and Technology

  The Review of High Pressure Science and Technology 7 266-268, 1998

  The Japan Society of High Pressure Science and Technology

Keywords

• Brillouin scattering
• elastic constant
• layered structure
• polarizability

Details

• CRID: 1390001204381531008
• NII Article ID: 10002689709
• NII Book ID: AN10452913
• DOI: 10.4131/jshpreview.7.266
• ISSN: 13481940
• ISSN: 0917639X
• NDL BIB ID: 4493898
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4493898
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed