The local thermoelectric properties of a -graphite intercalate compound are studied by means of scanning-tunneling microscopy (STM). The analysis by micro-Raman spectroscopy suggested two domains, a “carbonlike” and a “-like.” By using the thermovoltage that arises if a temperature difference between the tunneling tip and the sample of a STM is applied, areas with a difference in the local density of states can be distinguished with high lateral resolution. The differences in the local thermopower may be as large as several hundred . The aim was to estimate the contribution of the different domains to the thermopower of .
Analysis of a -graphite intercalate surface by thermovoltage scanning tunneling microscopy
Present address: Institute for experimental physics, Johannes Kepler University Linz, Altenberger Str. 69, 4040 Linz, Austria.
J. Seifritz, Th. Wagner, B. Weyers, R. Möller; Analysis of a -graphite intercalate surface by thermovoltage scanning tunneling microscopy. Appl. Phys. Lett. 16 March 2009; 94 (11): 113112. https://doi.org/10.1063/1.3095662
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