Optical detection of plasmonic and interband excitations in 1-nm-wide indium atomic wires
Infrared spectroscopy is demonstrated to sensitively detect electronic excitations in 1-nm-wide wires made of indium. The polarization-dependent spectra measured at room temperature show a strong broadband plasmonic absorption feature in the direction parallel to the wires, while in the perpendicula...
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| Main Authors: | , , , , , , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
14 June 2010
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| In: |
Applied physics letters
Year: 2010, Volume: 96, Issue: 24, Pages: 1-3 |
| ISSN: | 1077-3118 |
| DOI: | 10.1063/1.3451461 |
| Online Access: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1063/1.3451461 Verlag, lizenzpflichtig, Volltext: https://aip.scitation.org/doi/10.1063/1.3451461 
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| Author Notes: | H.V. Chung, C.J. Kubber, G. Han, S. Rigamonti, D. Sanchez-Portal, D. Enders, A. Pucci, and T. Nagao |
| Summary: | Infrared spectroscopy is demonstrated to sensitively detect electronic excitations in 1-nm-wide wires made of indium. The polarization-dependent spectra measured at room temperature show a strong broadband plasmonic absorption feature in the direction parallel to the wires, while in the perpendicular direction the wires stay nearly transparent in the same spectral range. At 88 K the wires do not show this broadband absorption anymore, but instead, several interband-transition features arise for both polarizations, in agreement to the gap opening of the metal-to-insulator transition as known for this one-dimensional structure. |
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| Item Description: | Gesehen am 22.03.2023 |
| Physical Description: | Online Resource |
| ISSN: | 1077-3118 |
| DOI: | 10.1063/1.3451461 |