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Ultra-low conductivity noise in metallic nanowires

Singh, Amrita and Ghosh, Arindam (2009) Ultra-low conductivity noise in metallic nanowires. In: 20th International Conference on Noise and Fluctuations, June 14-19, 2009, Pisa, Italy, pp. 97-100.

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Abstract

By modifying the electrodeposition technique, we have stabilized the silver nanowires (AgNWs) in high-energy hexagonal closed packed (hcp)structure. The conductivity noise measurements show that the noise magnitude in hcp silver nanowires is several orders of magnitude smaller than that of face centered cubic (fcc) silver nanowires, which is obtained by standard over potential lectrodeposition (OPD)technique. The reduction of noise can be attributed to the restricted dislocation dynamics in hcp AgNWs due to the presence of less number of slip systems. Temperature dependent noise measurements show that the noise magnitude in hcp AgNWs is weakly temperature dependent while in fcc AgNWs it is strong function of temperature.

Item Type: Conference Paper
Additional Information: Copyright of this article belongs to American Institute of Physics.
Keywords: crystallinity; conductivity noise; dislocation
Department/Centre: Division of Physical & Mathematical Sciences > Physics
Depositing User: Id for Latest eprints
Date Deposited: 04 Jan 2010 11:38
Last Modified: 04 Jan 2010 11:38
URI: http://eprints.iisc.ac.in/id/eprint/21347

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