31 citations · 96 across the 4 of their papers we have counts for
7 papers
Direct observation of large temperature fluctuations during DNA thermal denaturation
K. S. Nagapriya, A. K. Raychaudhuri, Dipankar Chatterji
In this paper we report direct measurement of large low frequency temperature fluctuations in double stranded (ds) DNA when it undergoes thermal denaturation transition. The fluctu…
Low frequency conductance fluctuations (1/f^αnoise) in 15nm Ag nanowires: Implication on its stability
Aveek Bid, Achyut Bora, A. K. Raychaudhuri +1
We have measured the low frequency (1mHz<f<10Hz) resistance fluctuations in metallic nanowires (diameter 15nm to 200nm) in the temperature range 77K to 400K. The nanowires were gro…
A set-up for measurement of low frequency conductance fluctuation (noise) using digital signal processing techniques
Arindam Ghosh, Swastik Kar, Aveek Bid +1
We describe a set up for measurements of low frequency (1 mHz < f < 20 Hz) conductance fluctuations in a solid conductor. The set-up uses a five probe a.c. measurement technique an…
Low frequency random telegraphic noise (RTN) and 1/f noise in the rare-earth manganite PrCaMnO near the charge-ordering transition
Aveek bid, Ayan Guha, A. K. Raychaudhuri
We have studied low frequency resistance fluctuations (noise) in a single crystal of the rare earth perovskite manganite PrCaMnO which shows a charge ordering…
Electric field induced suppression of universal conductance fluctuations and dephasing in disordered systems
Arindam Ghosh, A. K. Raychaudhuri
We report a novel phenomenon that the universal conductance fluctuations (UCF) can be suppressed by a small electric field E. The experiment has been carried out on single crystals…
Conductance fluctuations near Anderson transition
Arindam Ghosh, A. K. Raychaudhuri
In this paper we report measurements of conductance fluctuations in single crystal samples of Si doped with P and B close to the critical composition of the metal insulator transit…