title: Anomalous conductance quantization in carbon nanotubes.
abstract: 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.
authors.affiliation: Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA.
authors.forename: M J
authors.initials: MJ
authors.lastname: Biercuk
authors.forename: N
authors.initials: N
authors.lastname: Mason
authors.forename: J
authors.initials: J
authors.lastname: Martin
authors.forename: A
authors.initials: A
authors.lastname: Yacoby
authors.forename: C M
authors.initials: CM
authors.lastname: Marcus