Sound-Wave-Like Collective Electronic Excitations in Au Atom Chains(Condensed matter : electronic structure and electrical, magnetic, and optical properties)
スポンサーリンク
概要
- 論文の詳細を見る
Sound-wave-like collective excitation in Au atom chains on the Si(557) surface is investigated. Electron scattering spectroscopy using a highly collimated slow electron beam has detected a characteristic low-energy one-dimensional (1D) plasmon (wire plasmon) that is confined in the atom chains. Theoretical analysis adopting a quantum-mechanical scheme beyond the free-electron model indicates a significant dynamic exchange-correlation effect due to strong 1D confinement. By cooling to below 100K, we have detected for the first time a significant change in the plasmon dispersion in a tiny momentum and energy region, which definitely reflects a gap opening due to a metal-to-insulator transition of the atom chains.
- 社団法人日本物理学会の論文
- 2007-11-15
著者
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SAKURAI Toshio
Institute for Materials Research (IMR), Tohoku University
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Sakurai Toshio
Institute For Materials Research (imr) Tohoku University
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INAOKA Takeshi
Department of Electrical and Electronic Engineering, The University of Tokushima
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Yaginuma Shin
Nano System Functionality Center National Institute For Materials Science
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Nagao Tadaaki
Nano System Functionality Center National Institute For Materials Science:nanoscale Quantum Conducto
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Nagao Tadaaki
National Institute For Materials Science (nims):international Cooperative Research Project (icorp) J
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Nagao Tadaaki
Nano System Functionality Center National Institute For Materials Science:icorp Japan Science And Te
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Inaoka Takeshi
Department Of Electrical And Electronic Engineering The University Of Tokushima
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Inaoka Takeshi
Department Of Materials Science And Engineering Iwate University
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JEON Dongryul
Department of Physics Education, Seoul National University
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Jeon Dongryul
Department Of Physics Education Seoul National University
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Nagano Tadaaki
Nano System Functionality Center, National Institute for Materials Science
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Jeon Dongryul
Department of Physics Education and Nano Systems Institute, Seoul National University, Seoul 151-742, Korea
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