Electronic Instabilities of Two-Dimensional Metals K3Cu8S6 and Rb3Cu8S6
NORTH CAROLINA UNIV AT CHAPEL HILL DEPT OF CHEMISTRY
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The two-dimensional metals K3Cu8S6 and Rb3Cu8S6 show anomalies in their temperature dependent electrical conductivities which suggest charge- density waves. The band structure calculation of the mixed-valence CDW compound K3Cu8S6 shows that the Fermi surface of the compound is mainly composed of sulfur p electrons. The results of the calculations are supported by XPS studies. Keywords Charge-density waveselectrical conductivityalloys Band structure calculationmixed-valencefusion ReactionoxidationstatesFermi surface.
- Metallurgy and Metallography