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pro vyhledávání: '"Kondayya Gundra"'
Autor:
Kondayya, Gundra, Shukla, Alok
Publikováno v:
Physica B 406, 3538 (2011)
In this work we argue that it is important to make a proper choice of the unit cell within tight-binding theory if one aims to compute the optical matrix elements. By considering zigzag graphene nanoribbons, we demonstrate that the band structure is
Externí odkaz:
http://arxiv.org/abs/1007.1106
Autor:
Kondayya, Gundra, Shukla, Alok
Publikováno v:
In Computer Physics Communications 2012 183(3):677-689
Publikováno v:
Journal of Radioanalytical and Nuclear Chemistry. 325:905-911
223Ra is one of the most promising $$\alpha$$ -particle emitters for targeted radionuclide therapy. In this work, the possibility of producing 223Ra by neutron irradiation of 226Ra in Dhruva Reactor at Bhabha Atomic Research Centre, India has been st
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::753c811e6f1741a5d07fa970ba31db83
https://doi.org/10.1007/s10967-020-07159-9
https://doi.org/10.1007/s10967-020-07159-9
Autor:
Kondayya Gundra, Alok Shukla
Publikováno v:
Topological Modelling of Nanostructures and Extended Systems ISBN: 9789400764125
The electronic structure of graphene and related nanostructures such as graphene nanoribbons and quantum dots is frequently described within the π-electron approaches such as the tight-binding model, which completely ignores the electron–electron
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f812ff344c1d0fb21acb8fc27a695774
https://doi.org/10.1007/978-94-007-6413-2_6
https://doi.org/10.1007/978-94-007-6413-2_6
Autor:
Alok Shukla, Kondayya Gundra
Publikováno v:
Physical Review B. 84
Using the tight binding and Pariser-Parr-Pople (PPP) model Hamiltonians, we study the electronic structure and optical response of multilayer armchair graphene nanoribbons (AGNRs), both with and without a gate bias. In particular, the influence of th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::65a122f44b12d9ec56afebf013dfbef7
https://doi.org/10.1103/physrevb.84.075442
https://doi.org/10.1103/physrevb.84.075442
Autor:
Kondayya Gundra, Alok Shukla
Publikováno v:
IndraStra Global.
In the tight-binding theory, momentum matrix elements (MMEs) needed to calculate the optical properties are normally computed using a formulation based on the gradient of the Hamiltonian in the k space. We demonstrate the inadequacy of this formulati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::61458bcd8d8a26616facfb06df8799db
Autor:
Kondayya Gundra, Alok Shukla
We present calculations of the optical absorption and electro-absorption spectra of graphene nanoribbons (GNRs) using a $\pi-$electron approach, incorporating long-range Coulomb interactions within the Pariser-Parr-Pople (PPP) model Hamiltonian. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::15f234084e443707331e498117a46dbb
http://arxiv.org/abs/1008.3538
http://arxiv.org/abs/1008.3538
Akademický článek
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Autor:
Jain, Lakshay1,2 (AUTHOR), Thakare, S. V.3 (AUTHOR) svt@barc.gov.in, Gundra, Kondayya4 (AUTHOR)
Publikováno v:
Journal of Radioanalytical & Nuclear Chemistry. Sep2020, Vol. 325 Issue 3, p905-911. 7p. 1 Diagram, 1 Chart, 6 Graphs.
Topological Modelling of Nanostructures and Extended Systems completes and expands upon the previously published title within this series: The Mathematics and Topology of Fullerenes (Vol. 4, 2011) by gathering the latest research and advances in mate