Figures & data
Figure 1 (a) 00l x-ray diffraction pattern. Reflexions are indexed in the hexagonal 00l and rhombohedral hkl representations (rhombohedral structure can be represented in both systems). (b) Crystal structure of CaC6 (rhombohedral unit cell) [Citation21].
Figure 2 Zero field cooling (ZFC) and field cooling (FC) magnetisation versus temperature (field applied parallel to the graphene planes).
Interlayer distances di, critical temperatures and anisotropic ratios of several graphite intercalation compounds.
Figure 3 (a) Magnetisation versus field at various temperatures and (b) magnetic phase diagram of CaC6 [Citation17].
Figure 4 (a) Inductive characterisation of CaC6 (resonance frequency f0 and amplitude A0), (b) variation of magnetic penetration depth Δλab with temperature. The inset zooms into low-temperature region (after [Citation38]).
Figure 5 (a) Resistivity versus temperature under various pressures [Citation51] and (b) evolution of the unit cell (hexagonal structure, left axis) and of the critical temperature (right axis) with pressure [Citation55].
