Journal
JOURNAL OF APPLIED PHYSICS
Volume 96, Issue 6, Pages 3458-3462Publisher
AMER INST PHYSICS
DOI: 10.1063/1.1779972
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The transport characteristics of 70-nm-diameter platinum nanowires (NWs), fabricated using a pore-templated electrodeposition process and individually contacted using a focused ion beam (FIB) method, are reported. This approach yields nanowire devices with low contact resistances (similar to400 Omega) and linear current-voltage characteristics for current densities up to 65 kA/cm(2). The intrinsic nanowire resistivity (33+/-5 muOmega cm) indicates significant contributions from surface- and grain-boundary scattering mechanisms. Fits to the temperature dependence of the intrinsic NW resistance confirm that grain-boundary scattering dominates surface scattering (by more than a factor of 2) at all temperatures. Our results demonstrate that FIB presents a rapid and flexible method for the formation of low-resistance ohmic contacts to individual metal nanowires, allowing intrinsic nanowire transport properties to be probed. (C) 2004 American Institute of Physics.
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