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Electrical resistivity in the c-axis direction of the ZnCl2 graphite intercalation acceptor compound

✍ Scribed by M.P Silva; C Santos; G.M Gualberto; A Hengeltraub

Publisher: Elsevier Science
Year: 1994
Tongue: English
Weight: 343 KB
Volume: 32
Category: Article
ISSN: 0008-6223
DOI: 10.1016/0008-6223(94)90049-3

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✦ Synopsis

The c-axis electrical resistivity of the stage-4 acceptor ZnQ graphite intercalated compound (GIG) has been measured in the temperature range (4.2-300)K. The obtained values are larger than those of Highly Oriented Pyrolytic Graphite (HOPG). Evidence for a change in the observed metallic tendency at 97K and a possible order-disorder transition at about 187K are also presented. According to a model by Sugihara, the conduction mechanism is a hopping process activated by phonons and impurities. In our sample, the activation by impurities is predominant over the whole temperature range.

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