C-Axis thermoelectric power of stage-2 graphite intercalation compound with iodine monobromide

c-axis thermoelectric power (TEP) of stage-2 IBr-GIC exhibits a linear temperature dependence at low temperature, which ascribed to the diffusion term. Around 80, K its slop becomes gently. This implies that the in-plane phonon scattering plays an important role in the conduction process. By choosin...

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Bibliographic Details
Published in:Journal of the Physical Society of Japan 1999-06, Vol.68 (6), p.2006-2009
Main Authors: KOBAYASHI, K, SUZUKI, S, OSHIMA, H, SUGIHARA, K
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Conductivity phenomena in semiconductors and insulators
Electronic transport in condensed matter
Exact sciences and technology
General theory, scattering mechanisms
General theory, scatteringmechanisms
Physics
Thermoelectric and thermomagnetic effects
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Summary:c-axis thermoelectric power (TEP) of stage-2 IBr-GIC exhibits a linear temperature dependence at low temperature, which ascribed to the diffusion term. Around 80, K its slop becomes gently. This implies that the in-plane phonon scattering plays an important role in the conduction process. By choosing an appropriate parameter set the diffusion term can be calculated. However, in the range 40--170, K the diffusion term cannot provide a good fit with the observed TEP. By introducing the phonon drag term, therefore, we obtain a good agreement with the observed data.
ISSN:0031-9015
1347-4073
DOI:10.1143/jpsj.68.2006