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Non-trivial length dependence of the conductance and negative differential resistance in atomic molecular wires

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Non-trivial length dependence of the conductance and negative differential resistance in atomic molecular wires. / Garcia-Suarez, V. M.; Lambert, Colin.
In: Nanotechnology, Vol. 19, No. 45, 455203, 12.11.2008, p. -.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Garcia-Suarez, VM & Lambert, C 2008, 'Non-trivial length dependence of the conductance and negative differential resistance in atomic molecular wires', Nanotechnology, vol. 19, no. 45, 455203, pp. -. https://doi.org/10.1088/0957-4484/19/45/455203

APA

Garcia-Suarez, V. M., & Lambert, C. (2008). Non-trivial length dependence of the conductance and negative differential resistance in atomic molecular wires. Nanotechnology, 19(45), -. Article 455203. https://doi.org/10.1088/0957-4484/19/45/455203

Vancouver

Garcia-Suarez VM, Lambert C. Non-trivial length dependence of the conductance and negative differential resistance in atomic molecular wires. Nanotechnology. 2008 Nov 12;19(45):-. 455203. doi: 10.1088/0957-4484/19/45/455203

Author

Garcia-Suarez, V. M. ; Lambert, Colin. / Non-trivial length dependence of the conductance and negative differential resistance in atomic molecular wires. In: Nanotechnology. 2008 ; Vol. 19, No. 45. pp. -.

Bibtex

@article{d1a41076d9a24d2abddcc4855ee48755,
title = "Non-trivial length dependence of the conductance and negative differential resistance in atomic molecular wires",
abstract = "We study the electronic and transport properties of two novel molecular wires made of atomic chains of carbon atoms (polyynes) capped with either benzene-thiols or pyridines. While both molecules are structurally similar, the electrical conductance of benzene-thiol-capped chains attached to gold electrodes is found to be much higher than that of pyridine-capped chains. We predict that the conductance is almost independent of molecular length, which suggests that these molecules could be ideal molecular wires for sub-10 nm circuitry. Both systems exhibit negative differential resistance (NDR) but its origin and characteristics depend on the type of molecule. We find a novel type of NDR mechanism produced by the movement of the lowest unoccupied molecular orbital (LUMO) resonance with bias. We also show that by gating the pyridine-capped molecules it is possible to make the NDR disappear and dramatically modify the I-V characteristics and the length dependence.",
author = "Garcia-Suarez, {V. M.} and Colin Lambert",
year = "2008",
month = nov,
day = "12",
doi = "10.1088/0957-4484/19/45/455203",
language = "English",
volume = "19",
pages = "--",
journal = "Nanotechnology",
issn = "0957-4484",
publisher = "IOP Publishing Ltd.",
number = "45",

}

RIS

TY - JOUR

T1 - Non-trivial length dependence of the conductance and negative differential resistance in atomic molecular wires

AU - Garcia-Suarez, V. M.

AU - Lambert, Colin

PY - 2008/11/12

Y1 - 2008/11/12

N2 - We study the electronic and transport properties of two novel molecular wires made of atomic chains of carbon atoms (polyynes) capped with either benzene-thiols or pyridines. While both molecules are structurally similar, the electrical conductance of benzene-thiol-capped chains attached to gold electrodes is found to be much higher than that of pyridine-capped chains. We predict that the conductance is almost independent of molecular length, which suggests that these molecules could be ideal molecular wires for sub-10 nm circuitry. Both systems exhibit negative differential resistance (NDR) but its origin and characteristics depend on the type of molecule. We find a novel type of NDR mechanism produced by the movement of the lowest unoccupied molecular orbital (LUMO) resonance with bias. We also show that by gating the pyridine-capped molecules it is possible to make the NDR disappear and dramatically modify the I-V characteristics and the length dependence.

AB - We study the electronic and transport properties of two novel molecular wires made of atomic chains of carbon atoms (polyynes) capped with either benzene-thiols or pyridines. While both molecules are structurally similar, the electrical conductance of benzene-thiol-capped chains attached to gold electrodes is found to be much higher than that of pyridine-capped chains. We predict that the conductance is almost independent of molecular length, which suggests that these molecules could be ideal molecular wires for sub-10 nm circuitry. Both systems exhibit negative differential resistance (NDR) but its origin and characteristics depend on the type of molecule. We find a novel type of NDR mechanism produced by the movement of the lowest unoccupied molecular orbital (LUMO) resonance with bias. We also show that by gating the pyridine-capped molecules it is possible to make the NDR disappear and dramatically modify the I-V characteristics and the length dependence.

UR - http://www.scopus.com/inward/record.url?scp=58149235151&partnerID=8YFLogxK

U2 - 10.1088/0957-4484/19/45/455203

DO - 10.1088/0957-4484/19/45/455203

M3 - Journal article

VL - 19

SP - -

JO - Nanotechnology

JF - Nanotechnology

SN - 0957-4484

IS - 45

M1 - 455203

ER -