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BIBTEX RIS

Anomalous Conductance Quantization in Carbon Nanotubes

2005; American Physical Society; Volume: 94; Issue: 2 Linguagem: Inglês

10.1103/physrevlett.94.026801

ISSN

1092-0145

Autores

Michael J. Biercuk, Nadya Mason, Jens Martin, Amir Yacoby, C. M. Marcus,

Tópico(s)

Quantum and electron transport phenomena

Resumo

Conductance measurements of carbon nanotubes containing gated local depletion regions exhibit plateaus as a function of gate voltage, spaced by approximately 1e(2)/h, the quantum of conductance for a single (nondegenerate) mode. Plateau structure is investigated as a function of bias voltage, temperature, and magnetic field. We speculate on the origin of this surprising quantization, which appears to lack band and spin degeneracy.

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