Abstract
Our photoelectron spectroscopy study shows a giant kink in the electron dispersion, a sign of high-energy manybody interactions of electrons, in a well-ordered Pb nanowire array self-assembled on a silicon substrate. We show that the unique electronic band structure due to the strong lateral coupling and the atomic structure of the nanowires drives an enhanced manybody interaction for kinked electron dispersion. The major giant kink mechanisms discussed previously, the magnetic and plasmonic excitations, are not relevant in the present system, supporting the recent kink theory based purely on electron-electron correlation. This suggests that tailored electronic band structures in nano array systems can provide unprecedented ways to study manybody interactions of electrons.
| Original language | English |
|---|---|
| Pages (from-to) | 1916-1920 |
| Number of pages | 5 |
| Journal | Nano letters |
| Volume | 9 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 2009 May 13 |
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All Science Journal Classification (ASJC) codes
- Bioengineering
- Chemistry(all)
- Materials Science(all)
- Condensed Matter Physics
- Mechanical Engineering
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Giant kink in electron dispersion of strongly coupled lead nanowires. / Kim, Keun Su; Yeom, Han Woong.
In: Nano letters, Vol. 9, No. 5, 13.05.2009, p. 1916-1920.Research output: Contribution to journal › Article
TY - JOUR
T1 - Giant kink in electron dispersion of strongly coupled lead nanowires
AU - Kim, Keun Su
AU - Yeom, Han Woong
PY - 2009/5/13
Y1 - 2009/5/13
N2 - Our photoelectron spectroscopy study shows a giant kink in the electron dispersion, a sign of high-energy manybody interactions of electrons, in a well-ordered Pb nanowire array self-assembled on a silicon substrate. We show that the unique electronic band structure due to the strong lateral coupling and the atomic structure of the nanowires drives an enhanced manybody interaction for kinked electron dispersion. The major giant kink mechanisms discussed previously, the magnetic and plasmonic excitations, are not relevant in the present system, supporting the recent kink theory based purely on electron-electron correlation. This suggests that tailored electronic band structures in nano array systems can provide unprecedented ways to study manybody interactions of electrons.
AB - Our photoelectron spectroscopy study shows a giant kink in the electron dispersion, a sign of high-energy manybody interactions of electrons, in a well-ordered Pb nanowire array self-assembled on a silicon substrate. We show that the unique electronic band structure due to the strong lateral coupling and the atomic structure of the nanowires drives an enhanced manybody interaction for kinked electron dispersion. The major giant kink mechanisms discussed previously, the magnetic and plasmonic excitations, are not relevant in the present system, supporting the recent kink theory based purely on electron-electron correlation. This suggests that tailored electronic band structures in nano array systems can provide unprecedented ways to study manybody interactions of electrons.
UR - http://www.scopus.com/inward/record.url?scp=66549083274&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=66549083274&partnerID=8YFLogxK
U2 - 10.1021/nl900052s
DO - 10.1021/nl900052s
M3 - Article
C2 - 19331422
AN - SCOPUS:66549083274
VL - 9
SP - 1916
EP - 1920
JO - Nano Letters
JF - Nano Letters
SN - 1530-6984
IS - 5
ER -