Bid, Aveek and Bora, Achyut and Raychaudhuri, AK (2005) Observation of large low-frequency resistance fluctuations in metallic nanowires: Implications on its stability. In: Physical Review B, 72 (11).
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Abstract
We have measured the low frequency (1 mHz \leq f \leq 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 (similar or equal to $1/f^{3/2}$) arise when the diameter of the wire similar or equal to 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: | Journal Article |
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Publication: | Physical Review B |
Publisher: | American Physical Society |
Additional Information: | Copyright for this article belongs to American Physical Society. |
Department/Centre: | Division of Physical & Mathematical Sciences > Physics |
Date Deposited: | 04 Nov 2005 |
Last Modified: | 19 Sep 2010 04:20 |
URI: | http://eprints.iisc.ac.in/id/eprint/3939 |
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