Coherent nonlocal transport in quantum wires with strongly coupled electrodes

Y. Yang; G. Fedorov; P. Barbara; S. E. Shafranjuk; B. K. Cooper; R. M. Lewis; C. J. Lobb

doi:10.1103/PhysRevB.87.045403

Coherent nonlocal transport in quantum wires with strongly coupled electrodes

Y. Yang^*, G. Fedorov, P. Barbara, S. E. Shafranjuk, B. K. Cooper, R. M. Lewis, C. J. Lobb

^*Corresponding author for this work

Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

Abstract

We report a one-dimensional nonlocal experiment where the conductance of a section of carbon nanotube shows regular oscillations due to phase-coherent and ballistic transport in an adjacent section. This occurs in spite of wide strongly coupled contact electrodes, which are expected to divide the nanotube into independent sections. Our simulations show that the electrodes can be modeled as shallow and wide barriers which maintain quantum coherence of electron transport between the adjacent sections for lengths of several micrometers.

Original language	English (US)
Article number	045403
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	87
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevB.87.045403
State	Published - Jan 3 2013

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.87.045403

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title = "Coherent nonlocal transport in quantum wires with strongly coupled electrodes",

abstract = "We report a one-dimensional nonlocal experiment where the conductance of a section of carbon nanotube shows regular oscillations due to phase-coherent and ballistic transport in an adjacent section. This occurs in spite of wide strongly coupled contact electrodes, which are expected to divide the nanotube into independent sections. Our simulations show that the electrodes can be modeled as shallow and wide barriers which maintain quantum coherence of electron transport between the adjacent sections for lengths of several micrometers.",

author = "Y. Yang and G. Fedorov and P. Barbara and Shafranjuk, {S. E.} and Cooper, {B. K.} and Lewis, {R. M.} and Lobb, {C. J.}",

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AU - Yang, Y.

AU - Fedorov, G.

AU - Barbara, P.

AU - Shafranjuk, S. E.

AU - Cooper, B. K.

AU - Lewis, R. M.

AU - Lobb, C. J.

PY - 2013/1/3

Y1 - 2013/1/3

N2 - We report a one-dimensional nonlocal experiment where the conductance of a section of carbon nanotube shows regular oscillations due to phase-coherent and ballistic transport in an adjacent section. This occurs in spite of wide strongly coupled contact electrodes, which are expected to divide the nanotube into independent sections. Our simulations show that the electrodes can be modeled as shallow and wide barriers which maintain quantum coherence of electron transport between the adjacent sections for lengths of several micrometers.

AB - We report a one-dimensional nonlocal experiment where the conductance of a section of carbon nanotube shows regular oscillations due to phase-coherent and ballistic transport in an adjacent section. This occurs in spite of wide strongly coupled contact electrodes, which are expected to divide the nanotube into independent sections. Our simulations show that the electrodes can be modeled as shallow and wide barriers which maintain quantum coherence of electron transport between the adjacent sections for lengths of several micrometers.

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Coherent nonlocal transport in quantum wires with strongly coupled electrodes

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