Investigation of size effects in the electrical resistivity of single electrochemically fabricated gold nanowires

被引：37

作者：

Karim, S. ^{[1
]}

Ensinger, W. ^{[2
]}

Cornelius, T. W. ^{[3
]}

Neumann, R. ^{[3
]}

机构：

[1] PINSTECH, Div Phys, Islamabad, Pakistan

[2] Tech Univ Darmstadt, Inst Mat & Earth Sci, D-64287 Darmstadt, Germany

[3] Gesell Schwerionenforsch mbH, D-64291 Darmstadt, Germany

来源：

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES | 2008年 / 40卷 / 10期

关键词：

size effects; electrical resistivity; gold nanowires;

D O I：

10.1016/j.physe.2008.05.011

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

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 rho(300K)/rho(20K) approximate to 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. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：3173 / 3178

页数：6

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