Zobrazeno 1 - 10
of 66
pro vyhledávání: '"S. N. Karmakar"'
Autor:
Sourav Kundu, S. N. Karmakar
Publikováno v:
AIP Advances, Vol 5, Iss 10, Pp 107122-107122-9 (2015)
We present a tight-binding study of conformation dependent electronic transport properties of DNA double-helix including its helical symmetry. We have studied the changes in the localization properties of DNA as we alter the number of stacked bases w
Externí odkaz:
https://doaj.org/article/6d2521c5a0394650a89ffdd4a288b3d2
Publikováno v:
AIP Advances, Vol 4, Iss 9, Pp 097126-097126-11 (2014)
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:
https://doaj.org/article/70aaac0b67e44184b042b77cc7f747b0
Autor:
Mrinmay K. Mukhopadhyay, Subrata Maji, S. N. Karmakar, Gouranga Manna, Milan K. Sanyal, Somobrata Acharya, Santanu Maiti
Publikováno v:
The Journal of Physical Chemistry C. 125:12774-12783
Self-assembly of anisotropic nanomaterials into ordered multidimensional (2D and 3D) arrays facilitate versatile collective properties. Monitoring of this self-assembly processes is essential to control the emerging properties of these nanostructured
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eeaff8e0a88dc8ddc6398cefd93e77a5
https://doi.org/10.1021/acs.jpcc.1c02277
https://doi.org/10.1021/acs.jpcc.1c02277
Autor:
Sourav Kundu, S. N. Karmakar
Publikováno v:
Physica B: Condensed Matter. 623:413334
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:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::260ed04f76bc5f9384ea11705b85097d
https://doi.org/10.1016/j.physb.2021.413334
https://doi.org/10.1016/j.physb.2021.413334
Publikováno v:
Physics Letters A. 379:2848-2852
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:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b0f1ee3caa946b37b470d1dcadb86838
https://doi.org/10.1016/j.physleta.2015.08.040
https://doi.org/10.1016/j.physleta.2015.08.040
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:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::83a1e2d77bf8a74dd6cdbd2044208972
Autor:
Sourav Kundu, S. N. Karmakar
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:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::674d0912d96763988b2a8846e1b379be
Publikováno v:
The European Physical Journal B. 80:105-114
We examine spin dependent transport in a quantum interferometer composed of magnetic atomic sites based on transfer matrix formalism. The interferometer, threaded by a magnetic flux $\phi$, is symmetrically attached to two semi-infinite one-dimension
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::92598ee4c3bd3c96cf5291e59813eebf
https://doi.org/10.1140/epjb/e2011-10931-6
https://doi.org/10.1140/epjb/e2011-10931-6
Publikováno v:
The European Physical Journal B. 76:435-444
We have presented the role of the Coulomb interaction (U) and the magnetic field $\vec{B}$ on the ground state properties of the quasi-one dimensional graphite ribbon structures at half-filling. Mean field Hartree-Fock Approximation is used to study
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::426bd63c8d2139db19594b84e7e1b984
https://doi.org/10.1140/epjb/e2010-00220-5
https://doi.org/10.1140/epjb/e2010-00220-5
Publikováno v:
Organic Electronics. 11:1120-1128
We do parametric calculations to elucidate multi-terminal electron transport properties through a molecular system where a single phenalenyl molecule is attached to semi-infinite one-dimensional metallic leads. A formalism based on the Green's functi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7aadee98b3ed1c789bab26964491d333
https://doi.org/10.1016/j.orgel.2010.04.006
https://doi.org/10.1016/j.orgel.2010.04.006