Karim, Shafqat ; Ensinger, Wolfgang ; Cornelius, T. W. ; Neumann, R. (2008)
Investigation of size effects in the electrical resistivity of single electrochemically fabricated gold nanowires.
In: Physica E: Low-dimensional Systems and Nanostructures, 40 (10)
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Single gold nanowires with diameters ranging between 80 and 300 nm were fabricated by electrochemical deposition in single-pore membranes. The wires were contacted by means of a macroscopic planar electrode on each membrane side. The resistance-versus-diameter behavior was measured and is discussed considering finite-size effects, i.e., additional electron scattering both at the wire surface and at grain boundaries. Resistance-versus-temperature curves display characteristics like a bulk metal that shows a linear behavior down to about 70 K and finally approaches a limited value below 40–50 K with a residual resistivity ratio ρ300 K/ρ20 K≈2.5. The temperature-dependent resistivity data of wires with diameters larger than 200 nm fit well with the model of Mayadas and Shatzkes for grain-boundary scattering, thus confirming that surface scattering is negligible in this range.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2008 |
| Autor(en): | Karim, Shafqat ; Ensinger, Wolfgang ; Cornelius, T. W. ; Neumann, R. |
| Art des Eintrags: | Bibliographie |
| Titel: | Investigation of size effects in the electrical resistivity of single electrochemically fabricated gold nanowires |
| Sprache: | Englisch |
| Publikationsjahr: | September 2008 |
| Verlag: | Elsevier Science Publishing Company |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Physica E: Low-dimensional Systems and Nanostructures |
| Jahrgang/Volume einer Zeitschrift: | 40 |
| (Heft-)Nummer: | 10 |
| URL / URN: | http://www.sciencedirect.com/science/article/B6VMT-4SMWFM1-1... |
| Kurzbeschreibung (Abstract): | Single gold nanowires with diameters ranging between 80 and 300 nm were fabricated by electrochemical deposition in single-pore membranes. The wires were contacted by means of a macroscopic planar electrode on each membrane side. The resistance-versus-diameter behavior was measured and is discussed considering finite-size effects, i.e., additional electron scattering both at the wire surface and at grain boundaries. Resistance-versus-temperature curves display characteristics like a bulk metal that shows a linear behavior down to about 70 K and finally approaches a limited value below 40–50 K with a residual resistivity ratio ρ300 K/ρ20 K≈2.5. The temperature-dependent resistivity data of wires with diameters larger than 200 nm fit well with the model of Mayadas and Shatzkes for grain-boundary scattering, thus confirming that surface scattering is negligible in this range. |
| Freie Schlagworte: | Size effects; Electrical resistivity; Gold nanowires |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Materialanalytik 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften |
| Hinterlegungsdatum: | 06 Jul 2009 13:54 |
| Letzte Änderung: | 05 Mär 2013 09:20 |
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