Abstract

The electronic properties of the stage-2 IBr graphite intercalation compound were investigated by means of the de Haas - van Alphen (dHvA) effect. Thirty dHvA frequencies were found with the magnetic field parallel to the c-axis. These results are explained by the Fermi surface model formed by zone folding resulting from commensurate in-plane superlattice translations which coupled carrier orbits. The unfolded Fermi surface was the primitive two-dimensional Fermi surface of Blinowski et al for graphite intercalation compounds. By adjusting the dimensions of this Fermi surface, all the dHvA frequencies were interpreted with an accuracy of . The Fermi radii of the unfolded Fermi surface were and . The dHvA frequencies (455 and 1106 T) were used to determine the band parameters (the interaction of nearest neighbours) and (the interaction of nearest layers) in Blinowski's theoretical band model for acceptor-type graphite intercalation compounds.

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