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)
Article
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.
| Item Type: | Article |
|---|---|
| Erschienen: | 2008 |
| Creators: | Karim, Shafqat ; Ensinger, Wolfgang ; Cornelius, T. W. ; Neumann, R. |
| Type of entry: | Bibliographie |
| Title: | Investigation of size effects in the electrical resistivity of single electrochemically fabricated gold nanowires |
| Language: | English |
| Date: | September 2008 |
| Publisher: | Elsevier Science Publishing Company |
| Journal or Publication Title: | Physica E: Low-dimensional Systems and Nanostructures |
| Volume of the journal: | 40 |
| Issue Number: | 10 |
| URL / URN: | http://www.sciencedirect.com/science/article/B6VMT-4SMWFM1-1... |
| 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. |
| Uncontrolled Keywords: | Size effects; Electrical resistivity; Gold nanowires |
| Divisions: | 11 Department of Materials and Earth Sciences > Material Science > Material Analytics 11 Department of Materials and Earth Sciences > Material Science 11 Department of Materials and Earth Sciences |
| Date Deposited: | 06 Jul 2009 13:54 |
| Last Modified: | 05 Mar 2013 09:20 |
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