Abstract

c-axis thermoelectric power (TEP) S c of stage-2 graphite intercalation compound with iodine monobromide (IBr-GIC) was measured below the room temperature, and the calculation was carried out by our theory. The major part of S c comes from the diffusion TEP S c-d. However, a slight deviation exists between S c-d and the experimental result S c and it can be removed in consideration of phonon drag TEP S c-p. This situation was different from the case of graphite intercalation compound with iodine monochrolide (ICI-GICs). Above the room temperature, we attempted to measure the TEP of stage-2 IBr-GIC. It shows the phase transition similar to the case in ICI-GICs.

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