Modulation of Thermoelectric Power of Individual Carbon Nanotubes

Joshua P. Small; Kerstin M. Perez; Philip Kim

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Modulation of Thermoelectric Power of Individual Carbon Nanotubes

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arxiv cond-mat/0310507 v1 pith:53S5CV5X submitted 2003-10-21 cond-mat.mes-hall

Joshua P. Small , Kerstin M. Perez , Philip Kim This is my paper

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keywords swntsbeencarbonindividualmeasurednanotubesobservedpower

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Thermoelectric power (TEP) of individual single walled carbon nanotubes (SWNTs) has been measured at mesoscopic scales using a microfabricated heater and thermometers. Gate electric field dependent TEP-modulation has been observed. The measured TEP of SWNTs is well correlated to the electrical conductance across the SWNT according to the Mott formula. At low temperatures, strong modulations of TEP were observed in the single electron conduction limit. In addition, semiconducting SWNTs exhibit large values of TEP due to the Schottky barriers at SWNT-metal junctions.

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