Accession Number:

ADP011547

Title:

Extended X-Ray Absorption Fine Structure Study on Bi Modified GeS Bulk Glasses

Descriptive Note:

Corporate Author:

UNIVERSITE DE ROUEN CEDEX (FRANCE)

Report Date:

2001-06-01

Pagination or Media Count:

6.0

Abstract:

EXAFS measurements have been performed from the Ge K edge and Bi L111 edge on GeSBi glasses with 6, 8 and 16 Bi at., and on crystalline Bi2S3. As expected, Ge is found to be fourfold coordinated with S atoms. It is also found that Bi is only coordinated with S with a coordination number CN-4. This result for the CN-4. of Bi contradicts the conclusion of Elliot and Steel. On the basis of the obtained CN-4. of Bi, it is possible to exclude the presence of Bi2S3 microcrystalline inclusions and to assert that these glasses are homogeneous at the microscopic level.

Subject Categories:

  • Ceramics, Refractories and Glass
  • Atomic and Molecular Physics and Spectroscopy

Distribution Statement:

APPROVED FOR PUBLIC RELEASE