Zobrazeno 1 - 10
of 134
pro vyhledávání: '"Karmakar, S. N."'
Autor:
Kundu, Sourav, Karmakar, S. N.
Publikováno v:
Physics Letters A 380, 2395 (2016)
We propose a tight-binding model to investigate electronic transport properties of single helical protein molecules incorporating both the helical symmetry and the possibility of multiple charge transfer pathways. Our study reveals that due to existe
Externí odkaz:
http://arxiv.org/abs/1603.01966
Publikováno v:
Physica E: Low-Dimensional Systems and Nanostructures, Volume 83, September 2016, Pages 358-364
Electronic behavior of a 1D Aubry chain with Hubbard interaction is critically analyzed in presence of electric field. Multiple energy bands are generated as a result of Hubbard correlation and Aubry potential, and, within these bands localized state
Externí odkaz:
http://arxiv.org/abs/1601.00996
Publikováno v:
Physics Letters A, Volume 380, Issue 20, 29 April 2016, Pages 1741-1749
We present the overall conductance as well as the circulating currents in individual loops of a Sierpinski gasket (SPG) as we apply bias voltage via the side attached electrodes. SPG being a self-similar structure, its manifestation on loop currents
Externí odkaz:
http://arxiv.org/abs/1510.08035
Autor:
Kundu, Sourav, Karmakar, S. N.
Publikováno v:
Nanotechnology 27 (2016) 135101
We present an unique way to detect basepair mismatches in DNA leading to different epigenetic disorder by the method of nanopore sequencing. Based on a tight-binding formulation of graphene nanopore based device, using Greens function approach we mea
Externí odkaz:
http://arxiv.org/abs/1508.07787
Autor:
Kundu, Sourav, Karmakar, S. N.
Publikováno v:
Physica B 623 (2021) 413334
We present a tight-binding model study of a two-terminal graphene nanopore device for sequential determination of DNA bases. Using Green's function technique we investigate the changes in electronic transport properties of the device due to insertion
Externí odkaz:
http://arxiv.org/abs/1506.07361
Publikováno v:
Physics Letters A, Volume 379, Issues 43-44, 6 November 2015, Pages 2848-2852
Conformation dependent circular current is investigated in a single handed helical geometry in presence of magnetic flux $\phi$ within a Hartree-Fock mean field approach. The helical model is described by a set of non-planar rings connected by some v
Externí odkaz:
http://arxiv.org/abs/1506.01488
Autor:
Kundu, Sourav, Karmakar, S. N.
Publikováno v:
AIP Advances 5, 107122 (2015)
In this work we report the study of conformation dependent electronic transport properties of DNA double-helix within tight-binding framework including its helical symmetry. We have studied the changes in localization properties of DNA as we alter th
Externí odkaz:
http://arxiv.org/abs/1502.03586
Autor:
Kundu, Sourav, Karmakar, S. N.
Publikováno v:
Phys. Lett. A 379, 1377 (2015)
In this present work we report the results of our investigation on the electronic specific heat (ESH) of DNA molecule modelled within the tight-binding framework. We take four different DNA sequences ranging from periodic, quasi-periodic to random an
Externí odkaz:
http://arxiv.org/abs/1412.1348
Publikováno v:
AIP Advances, Volume 4, Issue 9, (2014), Page 097126 [11 pages]
Electric field induced localization properties of a tight-binding ladder network in presence of backbone sites are investigated. Based on Green's function formalism we numerically calculate two-terminal transport together with density of states for d
Externí odkaz:
http://arxiv.org/abs/1405.6810
Publikováno v:
Physica E: Low-Dimensional Systems and Nanostructures, Volume 64, November 2014, Pages 169-177
We put forward a new approach based on Green's function formalism to evaluate precisely persistent charge and spin currents in an Aharonov-Bohm ring subjected to Rashba and Dresselhaus spin-orbit interactions. Unlike conventional methods our present
Externí odkaz:
http://arxiv.org/abs/1401.0262