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High-Field Electrical Transport in Single-Wall Carbon Nanotubes

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arxiv cond-mat/9911186 v1 pith:S56JTO3Q submitted 1999-11-12 cond-mat.mes-hall

classification cond-mat.mes-hall
keywords nanotubescarbonelectricalhigh-fieldscatteringsingle-walltransportable
verification ladder T0 review T1 audit T2 compute T3 formal
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Using low-resistance electrical contacts, we have measured the intrinsic high-field transport properties of metallic single-wall carbon nanotubes. Individual nanotubes appear to be able to carry currents with a density exceeding 10^9 A/cm^2. As the bias voltage is increased, the conductance drops dramatically due to scattering of electrons. We show that the current-voltage characteristics can be explained by considering optical or zone-boundary phonon emission as the dominant scattering mechanism at high field.

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