Daptary, Gopi Nath and Kundu, Hemanta Kumar and Jesudasan, John and Kumar, Pramod and Dogra, Anjana and Raychaudhuri, Pratap and Budhani, RC and Bid, Aveek (2015) Resistance fluctuations near the Berezinskii-Kosterlitz-Thouless transition temperature in low dimensional superconductors. In: International Conference on Noise and Fluctuations, JUN 02-06, 2015, Xian, PEOPLES R CHINA.
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Abstract
We have studied resistance fluctuations in two different types of two-dimensional superconductors near to the Bcrczinskii-Kostcrlitz-Thoulcss (BKT) transition. The power spectral density of the resistance fluctuations was seen to deviate from 1/f as transition temperature is approached. We find that the shape of the spectrum can not be explained by a model for local defect fluctuations. Probability distribution function(PDF) and voltage-voltage auto-correlation functions provides evidence of the non-Gaussian nature of the resistance fluctuations near the BKT transition.
Item Type: | Conference Proceedings |
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Additional Information: | Copy right for this article belongs to the IEEE, 345 E 47TH ST, NEW YORK, NY 10017 USA |
Department/Centre: | Division of Physical & Mathematical Sciences > Physics |
Date Deposited: | 28 Oct 2016 07:05 |
Last Modified: | 28 Oct 2016 07:05 |
URI: | http://eprints.iisc.ac.in/id/eprint/55132 |
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