Dynamics of Twisted Electron Impact Ionization of CH4 and NH3 Molecule

Autor: Nikita Dhankhar, Neha, Rakesh Choubisa

Publikováno v: Atoms, Vol 11, Iss 5, p 82 (2023)

Electron vortex beams (EVBs, also known as twisted electron beams) possess an intrinsic orbital angular momentum (OAM) with respect to their propagation direction. This intrinsic OAM represents a new degree of freedom that provides new insights into

Externí odkaz: https://doaj.org/article/e1f7653f7cbd4493ae791ac64c703414

Triple differential cross-section for the twisted electron impact ionization of water molecule

Autor: Rakesh Choubisa, Nikita Dhankhar

In this communication, we present the results of the triple differential cross-section (TDCS) for the (e,2e) process on H2O molecule for the plane wave and the twisted electron beam impact. The formalism is developed in the first Born approximation.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ab81da2064f5cee9e83a621f64237260

Many body phenomenon within multiple scattering approach in PEELS

Autor: D Sébilleaut, Nikita Dhankhar, Aditi Mandal, V Kochetov, Rakesh Choubisa

Publikováno v: 31st International Conference on Photonic, Electronic and Atomic Collisions, ICPEAC 2019
31st International Conference on Photonic, Electronic and Atomic Collisions, ICPEAC 2019, Jul 2019, Caen, France. pp.202021, ⟨10.1088/1742-6596/1412/20/202021⟩

International audience; Plasmon excitation within multiple scattering approach is being explored. The plasmon loss is described within the so-called quasi-boson approximation, originally proposed by Hedin and further extended by Fujikawa. We compare

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::676559f7b0ffc4097c15b4e1e05d2fcc
https://hal.science/hal-02892617