Zobrazeno 1 - 10
of 3 542
pro vyhledávání: '"Bardhan, K."'
Publikováno v:
Materials Letters Volume 65, Issues 17_18, September 2011, Pages 2572_2574
This investigation deals with the effect of annealing temperature on the structural, topographical and optical properties of Zinc Oxide thin films prepared by sol gel method. The structural properties were studied using X-ray diffraction and the reco
Externí odkaz:
http://arxiv.org/abs/1908.05886
Understanding the nature of metal/1D-semiconductor contacts such as metal/carbon nanotubes is a fundamental scientific and technological challenge for realizing high performance transistors\cite{Francois,Franklin}. A Schottky Barrier(SB) is usually f
Externí odkaz:
http://arxiv.org/abs/1404.6730
The effect of an electric field on conduction in a disordered system is an old but largely unsolved problem. Experiments cover an wide variety of systems - amorphous/doped semiconductors, conducting polymers, organic crystals, manganites, composites,
Externí odkaz:
http://arxiv.org/abs/1305.0031
Publikováno v:
Phys. Rev. B86, 165104 (2012)
A new scaling formalism is used to analyze nonlinear I-V data in the vicinity of metal-insulator transitions (MIT) in five manganite systems. An exponent, called the nonlinearity exponent, and an onset field for nonlinearity, both characteristic of t
Externí odkaz:
http://arxiv.org/abs/1111.2772
Autor:
Talukdar, D., Nandi, U. N., Bardhan, K. K., Bufon, C. C. Bof, Heinzel, T., De, A., Mukherjee, C. D.
Publikováno v:
Phys. Rev. B 84 (2011) 054205
The \textit{I-V} characteristics of four conducting polymer systems like doped polypyrrole (PPy), poly 3,4 ethylene dioxythiophene (PEDOT), polydiacetylene (PDA) and polyaniline (PA) in as many physical forms have been investigated at different tempe
Externí odkaz:
http://arxiv.org/abs/1102.5169
Publikováno v:
Rev. Sci. Instrum. 82, 013906 (2011)
A low noise constant current source used for measuring the $1/f$ noise in disordered systems in ohmic as well as non-ohmic regime is described. The source can supply low noise constant current starting from as low as 1 $\mu$A to a few tens of mA with
Externí odkaz:
http://arxiv.org/abs/1012.5898
Publikováno v:
AIP Conference Proceedings 800, 2005
We present here a short review of mainly experimental properties of noise as disordered systems are driven into non-ohmic regimes by applying voltages of few volts only. It is found that the noise does not simply follow the resistance in that the dir
Externí odkaz:
http://arxiv.org/abs/cond-mat/0512621
Autor:
Bardhan, K. K., Mukherjee, C. D.
Publikováno v:
Phys. Rev. B65, 212302, 2002
Noise has been measured in two types of coductor-insulator mixtures as a function of bias and composition. It was marked by a huge increase in magnitude as the resistance increased only slightly due to Joule heating. The noise (resistance) current sc
Externí odkaz:
http://arxiv.org/abs/cond-mat/0303408
Autor:
Mukherjee, C. D., Bardhan, K. K.
At a composition far above the percolation threshold, the resistance of a composite sample increases with time due to Joule heating as a constant current of sufficiently large value is passed through the sample. If the current is less than a certain
Externí odkaz:
http://arxiv.org/abs/cond-mat/0303313