The excitation of one-dimensional plasmons in Si and Au-Si complex atom wires

Canhua Liu; Takeshi Inaoka; Shin Yaginuma; Tomonobu Nakayama; Masakazu Aono; Tadaaki Nagao

doi:10.1088/0957-4484/19/35/355204

The excitation of one-dimensional plasmons in Si and Au-Si complex atom wires

Canhua Liu, Takeshi Inaoka, Shin Yaginuma, Tomonobu Nakayama, Masakazu Aono, Tadaaki Nagao

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

13 Citations (Scopus)

Abstract

An atom-scale quantum wire array at the Au adsorbed Si(111) surface is studied by electron energy loss spectroscopy. Clear one-dimensional metallicity is verified by the observation of low-energy plasmonic excitation which exhibits a strong anisotropic dispersion. Our theoretical analysis using a quantum-mechanical nonlocal response theory shows that the plasmons are most probably supported in conductive channels made of Si honeycomb wires rather than those made of Au-Si complex wires.

Original language	English
Article number	355204
Journal	Nanotechnology
Volume	19
Issue number	35
DOIs	https://doi.org/10.1088/0957-4484/19/35/355204
Publication status	Published - 2008 Sep 3

ASJC Scopus subject areas

Bioengineering
Chemistry(all)
Materials Science(all)
Mechanics of Materials
Mechanical Engineering
Electrical and Electronic Engineering

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AU - Liu, Canhua

AU - Inaoka, Takeshi

AU - Yaginuma, Shin

AU - Nakayama, Tomonobu

AU - Aono, Masakazu

AU - Nagao, Tadaaki

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AB - An atom-scale quantum wire array at the Au adsorbed Si(111) surface is studied by electron energy loss spectroscopy. Clear one-dimensional metallicity is verified by the observation of low-energy plasmonic excitation which exhibits a strong anisotropic dispersion. Our theoretical analysis using a quantum-mechanical nonlocal response theory shows that the plasmons are most probably supported in conductive channels made of Si honeycomb wires rather than those made of Au-Si complex wires.

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The excitation of one-dimensional plasmons in Si and Au-Si complex atom wires

Abstract

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