Zobrazeno 1 - 10
of 123
pro vyhledávání: '"Chakraborty, Himadri S"'
Upon absorbing a photon, the ionized electron sails through the target force field in attoseconds to reach free space. This navigation probes details of the potential landscape that get imprinted into the phase of the ionization amplitude. The Eisenb
Externí odkaz:
http://arxiv.org/abs/2412.08204
Publikováno v:
Physical Review B 110, 045422 (2024)
Non-charge based logic in single-hole spin of semiconductor quantum dots (QDs) can be controlled by anisotropic gate potentials providing a notion for making next generation solid-state quantum devices. In this study, we investigate the isotropic and
Externí odkaz:
http://arxiv.org/abs/2407.09689
Plane-wave electrons undergo momentum transfer as they scatter off a target in overlapping spherical waves. The transferred momentum leads to target structural information to be encoded in angle and energy differential scattering. For symmetric, peri
Externí odkaz:
http://arxiv.org/abs/2402.08103
Time delay in a projectile-target scattering is a fundamental tool in understanding their interactions by probing the temporal domain. The present study focuses on computing and analyzing the Eisenbud-Wigner-Smith (EWS) time delay in low energy elast
Externí odkaz:
http://arxiv.org/abs/2401.03370
The non-radiative electron-relaxation dynamics in C$_{60}$ molecule is studied after selective initial photoexcitations. The methodology includes nonadibabtic molecular simulation combined with time-dependent density functional theory (DFT) and semi-
Externí odkaz:
http://arxiv.org/abs/2306.16386
Autor:
Shaik, Rasheed, Varma, Hari R., Madjet, Mohamed El-Amine, Zheng, Fulu, Frauenheim, Thomas, Chakraborty, Himadri S.
Light-induced energy confinement in nanoclusters via plasmon excitations influences applications in nanophotonics, photocatalysis, and the design of controlled slow electron sources. The resonant decay of these excitations through the cluster's ioniz
Externí odkaz:
http://arxiv.org/abs/2212.01487
Autor:
Biswas, Shubhadeep, Trabattoni, Andrea, Rupp, Philipp, Magrakvelidze, Maia, Madjet, Mohamed El-Amine, De Giovannini, Umberto, Castrovilli, Mattea C., Galli, Mara, Liu, Qingcao, Månsson, Erik P., Schötz, Johannes, Wanie, Vincent, Légaré, François, Wnuk, Pawel, Nisoli, Mauro, Rubio, Angel, Chakraborty, Himadri S., Kling, Matthias F., Calegari, Francesca
Fullerenes have unique physical and chemical properties that are associated with their delocalized conjugated electronic structure. Among them, there is a giant ultra-broadband - and therefore ultrafast - plasmon resonance, which for C$_{60}$ is in t
Externí odkaz:
http://arxiv.org/abs/2111.14464
Inter-Coulombic decay (ICD) resonances in the photoionization of Cl@C60 endofullerene molecule are calculated using a perturbative density functional theory (DFT) method. This is the first ICD study of an open shell atom in a fullerene cage. Three cl
Externí odkaz:
http://arxiv.org/abs/2106.06071
Autor:
Ali, Esam, O'Brien, Taylor, Dennis, Andrew, Madjet, Mohamed El-Amine, Manson, Steven T., Chakraborty, Himadri S.
Our previous studies [J. Phys. B 53, 125101 (2020); Euro. Phys. J. D 74, 191 (2020)] have predicted that the atom-fullerene hybrid photoionization properties for X = Cl, Br and I endohedrally confined in C60 are different before and after an electron
Externí odkaz:
http://arxiv.org/abs/2106.02671
Autor:
Madjet, Mohamed El-Amine, Ali, Esam, Carignano, Marcelo, Vendrell, Oriol, Chakraborty, Himadri S.
Publikováno v:
Phys. Rev. Lett. 126, 183002 (2021)
Electron relaxation is studied in endofullerene Mg@C60, after an initial localized photoexcitation in Mg, by nonadiabtic molecular dynamics simulations. To ensure reliability, two methods are used: i) an independent particle approach with a DFT descr
Externí odkaz:
http://arxiv.org/abs/2012.00705