The intercalation process of some d-transition metal fluorides in graphite has been investigated using anhydrous liquid HF. CxMFyGICs have been obtained for M Cr, Rh, Ir and Au. The charge transfer has been evaluated from optical reflectivity measurements. Comparison has been carried out between electrical conductivity obtained from optical data and from a contactless method. Results on the in-plane electrical resistivity and thermal conductivity are reported. All compounds exhibit a logarithmic resistivity divergence in the low-temperature range due to weak localization and carrier-carrier interaction effects for 2D metals. © 1992.
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