Signatures of quantum transport in self-assembled epitaxial nickel suicide nanowires

J. F. Lin; J. P. Bird; Z. He; Peter Bennett; David Smith

doi:10.1063/1.1769583

Signatures of quantum transport in self-assembled epitaxial nickel suicide nanowires

J. F. Lin, J. P. Bird, Z. He, Peter Bennett, David Smith

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

42 Scopus citations

Abstract

The electrical properties of self-assembled epitaxial NiSi ₂ nanowires (NW) formed on Si substrates were measured. The quantum corrections due to weak antilocalization and electron-electron interactions were also found. The analysis of magnetoresistance indicates that electron phase coherence in the NWs was limited by Nyquist dephasing below 10 K. The phase-breaking and spin-orbit scattering lengths were found to be ∼45 nm and 3-7 nm, at 4.2 K, comparable to those in thin NiSi ₂ films. The nanoscale dimensions of the NWs allow the observation of quantum transport at higher temperatures (at least 30 K).

Original language	English (US)
Pages (from-to)	281-283
Number of pages	3
Journal	Applied Physics Letters
Volume	85
Issue number	2
DOIs	https://doi.org/10.1063/1.1769583
State	Published - Jul 12 2004

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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title = "Signatures of quantum transport in self-assembled epitaxial nickel suicide nanowires",

abstract = "The electrical properties of self-assembled epitaxial NiSi 2 nanowires (NW) formed on Si substrates were measured. The quantum corrections due to weak antilocalization and electron-electron interactions were also found. The analysis of magnetoresistance indicates that electron phase coherence in the NWs was limited by Nyquist dephasing below 10 K. The phase-breaking and spin-orbit scattering lengths were found to be ∼45 nm and 3-7 nm, at 4.2 K, comparable to those in thin NiSi 2 films. The nanoscale dimensions of the NWs allow the observation of quantum transport at higher temperatures (at least 30 K).",

author = "Lin, {J. F.} and Bird, {J. P.} and Z. He and Peter Bennett and David Smith",

note = "Funding Information: This work was supported by the Department of Energy (Grant No. DE-FG03-01ER45920), the National Science Foundation (Grant No. ECS 0304682), and the Office of Naval Research (Grant No. N00014-98-0594). One of the authors (J.F.L.) is grateful to Professor J. J. Lin of National Chiao Tung University, Taiwan, for helpful discussions and also acknowledges the kind hospitalilty of Professor Y. Ochiai of Chiba University, Japan.",

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language = "English (US)",

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AU - Lin, J. F.

AU - Bird, J. P.

AU - He, Z.

AU - Bennett, Peter

AU - Smith, David

N1 - Funding Information: This work was supported by the Department of Energy (Grant No. DE-FG03-01ER45920), the National Science Foundation (Grant No. ECS 0304682), and the Office of Naval Research (Grant No. N00014-98-0594). One of the authors (J.F.L.) is grateful to Professor J. J. Lin of National Chiao Tung University, Taiwan, for helpful discussions and also acknowledges the kind hospitalilty of Professor Y. Ochiai of Chiba University, Japan.

PY - 2004/7/12

Y1 - 2004/7/12

N2 - The electrical properties of self-assembled epitaxial NiSi 2 nanowires (NW) formed on Si substrates were measured. The quantum corrections due to weak antilocalization and electron-electron interactions were also found. The analysis of magnetoresistance indicates that electron phase coherence in the NWs was limited by Nyquist dephasing below 10 K. The phase-breaking and spin-orbit scattering lengths were found to be ∼45 nm and 3-7 nm, at 4.2 K, comparable to those in thin NiSi 2 films. The nanoscale dimensions of the NWs allow the observation of quantum transport at higher temperatures (at least 30 K).

AB - The electrical properties of self-assembled epitaxial NiSi 2 nanowires (NW) formed on Si substrates were measured. The quantum corrections due to weak antilocalization and electron-electron interactions were also found. The analysis of magnetoresistance indicates that electron phase coherence in the NWs was limited by Nyquist dephasing below 10 K. The phase-breaking and spin-orbit scattering lengths were found to be ∼45 nm and 3-7 nm, at 4.2 K, comparable to those in thin NiSi 2 films. The nanoscale dimensions of the NWs allow the observation of quantum transport at higher temperatures (at least 30 K).

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JF - Applied Physics Letters

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Signatures of quantum transport in self-assembled epitaxial nickel suicide nanowires

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