Hall effect of acceptor intercalation compounds in stages 1–3

Abstract The Hall effect of the stage-1 InCl 3 , the stage-2 BiCl 3 and the stage-3 HgCl 2 graphite intercalation compounds (GICs) was measured at temperatures between 4.2 and 300 K. The Hall coefficient for these compounds and the stage-1 CdCl 2 and the stage-2 HgCl 2 GIC reported previously is between 6.8 and 8.6 × 10 −9 m 3 C −1 and is independent of temperature to within experimental uncertainty. It is essentially independent of stage number and intercalant species. The charge density within the Fermi surface calculated from the de Haas-van Alphen effect data is larger than the carrier density derived from the Hall coefficient and cannot be used to explain the carrier density.