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Pressure dependence of Raman modes in the chalcopyrite quaternary alloy AgxCu1-xGaS2
- Issue Date
- Jan-2001
- Publisher
- WILEY-V C H VERLAG GMBH
- Citation
- PHYSICA STATUS SOLIDI B-BASIC RESEARCH, v.223, no.1, pp 313 - 317
- Pages
- 5
- Journal Title
- PHYSICA STATUS SOLIDI B-BASIC RESEARCH
- Volume
- 223
- Number
- 1
- Start Page
- 313
- End Page
- 317
- ISSN
- 0370-1972
1521-3951
- Abstract
- Raman scattering in the chalcopyrite quaternary alloy AgxCu1-xGaS2 has been studied under high pressure (up to 7 GPa) and at low temperature (50 K) using a diamond anvil high pressure cell for alloy concentrations x = 1, 0.75, 0.5, 0.25 and 0. This has allowed us to determine the dependence of their zone-center phonon modes on both pressure and alloy concentration. The resultant phonon pressure coefficients are helpful in understanding the nature of the phonon modes in these chalcopyrites.
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