Observation of large low-frequency resistance fluctuations in metallic nanowires: implications on its stability

Bid, Aveek ; Bora, Achyut ; Raychaudhuri, A. K. (2005) Observation of large low-frequency resistance fluctuations in metallic nanowires: implications on its stability Physical Review B: Condensed Matter and Materials Physics, 72 (11). 113415_1-113415_4. ISSN 1098-0121

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Official URL: http://prb.aps.org/abstract/PRB/v72/i11/e113415

Related URL: http://dx.doi.org/10.1103/PhysRevB.72.113415

Abstract

We have measured the low frequency (1mHz≤f≤10 Hz) resistance fluctuations in metallic nanowires (diameter 15 nm to 200 nm) in the temperature range 77 K to 400 K. The nanowires were grown electrochemically in polycarbonate membranes and the measurements were carried out in arrays of nanowires by retaining them in the membrane. A large fluctuation in excess of conventional 1/f noise which peaks beyond a certain temperature was found. The fluctuations with a significant low frequency component (⋍1/f3/2) arise when the diameter of the wire ⋍15 nm and vanish rapidly as the diameter is increased. We argue that Rayleigh-Plateau instability is the likely cause of this excess noise.

Item Type:Article
Source:Copyright of this article belongs to The American Physical Society.
ID Code:42569
Deposited On:04 Jun 2011 11:50
Last Modified:17 May 2016 23:49

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