The co-ordination environment of Ag in glassy AgAsS2. A neuron diffraction study

Ian T. Penfold; Philip S. Salmon

doi:10.1016/0022-3093(89)90075-6

The co-ordination environment of Ag in glassy AgAsS₂. A neuron diffraction study

Ian T. Penfold
, Philip S. Salmon

University of East Anglia

Research output: Contribution to journal › Article › peer-review

Abstract

The isotopic substitution method of neutron diffraction is applied to study the co-ordination environment of Ag in bulk-quenched glassy AgAsS₂. The silver has nearest-neighbour sulphur atoms with r_AgS = 2.54±0.01 and n^Ag_S = 3.2±0.1 in addition to pronounced second-neighbour (2.82Å≤r≤5.2Å) and intermediate-range (5.2Å≤r≤8.0Å) correlations. The observation of Ag correlations beyond the first sulphur shell is in direct contrast to the EXAFS results of Steel et al¹.

Original language	English
Pages (from-to)	82-84
Number of pages	3
Journal	Journal of Non-Crystalline Solids
Volume	114
Issue number	PART 1
DOIs	https://doi.org/10.1016/0022-3093(89)90075-6
Publication status	Published - 1 Dec 1989

Funding

6. ACKNOWLEDGEMENTS We thank Pierre Chieux (ILL) for his help with the diffraction experiments, Andy Firth (Edinburgh) for making Raman experiments on our samples, Hugh Caudill (Oak Ridge) for careful preparations of the Ag isotopes and Alan Owen (Edinburgh) for useful discussions. The financial support of the UK Science and Engineering Research Council is gratefully acknowledged.

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Condensed Matter Physics
Materials Chemistry

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10.1016/0022-3093(89)90075-6

Cite this

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abstract = "The isotopic substitution method of neutron diffraction is applied to study the co-ordination environment of Ag in bulk-quenched glassy AgAsS2. The silver has nearest-neighbour sulphur atoms with rAgS = 2.54±0.01 and nAgS = 3.2±0.1 in addition to pronounced second-neighbour (2.82{\AA}≤r≤5.2{\AA}) and intermediate-range (5.2{\AA}≤r≤8.0{\AA}) correlations. The observation of Ag correlations beyond the first sulphur shell is in direct contrast to the EXAFS results of Steel et al1.",

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AB - The isotopic substitution method of neutron diffraction is applied to study the co-ordination environment of Ag in bulk-quenched glassy AgAsS2. The silver has nearest-neighbour sulphur atoms with rAgS = 2.54±0.01 and nAgS = 3.2±0.1 in addition to pronounced second-neighbour (2.82Å≤r≤5.2Å) and intermediate-range (5.2Å≤r≤8.0Å) correlations. The observation of Ag correlations beyond the first sulphur shell is in direct contrast to the EXAFS results of Steel et al1.

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