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Electronic and nuclear stopping powers of superheavy ions with $\it{Z}$ up to 124 and $\it{A}$=300 in Al and U were estimated in the energy range of 0.01-0.20 MeV/u. The corresponding stopping powers were estimated using stopping powers of…

Nuclear Experiment · Physics 2015-02-03 Yong Hee Chung

Electronically excited atoms or molecules in an environment are often subject to interatomic/intermolecular Coulombic decay (ICD) and/or electron transfer mediated decay (ETMD) mechanisms. A few of the numerous variables that can impact…

Chemical Physics · Physics 2022-09-15 Ravi Kumar , Dr. Nayana Vaval

In this work, the controversy between the interpretations of recent measurements on dense aluminum plasma created with Linac coherent light sources (LCLS) X-ray free electron laser (FEL) and Orion laser has been addressed. In both kind of…

Atomic Physics · Physics 2015-06-11 S. Bhattacharyya , J. K. Saha , T. K. Mukherjee

The results of a theoretical investigation on the stopping power of ion pair in a magnetized electron plasma are presented, with particular emphasis on the two-ion correlation effects. The analysis is based on the assumptions that the…

Plasma Physics · Physics 2009-10-31 H. B. Nersisyan , C. Deutsch

This communication deals with a theoretical study of the hot spot onset (HSO) in cellular bipolar power transistors. This well-known phenomenon consists of a current crowding within few cells occurring for high power conditions, which…

Materials Science · Physics 2007-09-13 F. Stefani , P. -E. Bagnoli

Along the I24, I27 and I31 flybys of Io (1999-2001), the Energetic Particle Detector (EPD) onboard the Galileo spacecraft observed localised regions of energetic protons losses (155 keV-1250 keV). Using back-tracking particle simulations…

Earth and Planetary Astrophysics · Physics 2024-07-03 H. L. F. Huybrighs , C. P. A. van Buchem , A. Blöcker , V. Dols , C. F. Bowers , C. M. Jackman

In atmospheric pressure capacitively coupled microplasma jets, Voltage Waveform Tailoring (VWT) was demonstrated to provide ultimate control of the Electron Energy Distribution Function (EEDF), which allows to enhance and adjust the…

Plasma Physics · Physics 2021-11-17 Mate Vass , Sebastian Wilczek , Julian Schulze , Zoltan Donko

Calculations have been carried out for the vibrational quenching of excited H$_2$ molecules which collide with Li$^+$ ions at ultralow energies. The dynamics has been treated exactly using the well known quantum coupled-channel expansions…

Chemical Physics · Physics 2009-11-13 S. Bovino , E. Bodo , F. A. Gianturco

Numerical simulations recover ultra slow electron holes (EH) of electron-acoustic genre propagating stably well below the ion acoustic speed where the ion response disallows any known pure electron perturbation. The reason of stability of…

Plasma Physics · Physics 2020-02-19 D. Mandal , D. Sharma , H. Schamel

We have investigated the energy correlation of the two electrons from nonsequential double ionization of helium atom in 800 nm laser fields at intensities below the recollision threshold by quantum calculations. The circular arcs structure…

Optics · Physics 2011-10-07 Qing Liao , Peixiang Lu

We consider a neutralization of excited antiprotonic helium ion accompanied by antiproton transitions to lower states in collisions with helium atoms $(\bar{p}\mathrm{He}^{2+})_{nl} + \mathrm{He} \rightarrow \left[…

Nuclear Theory · Physics 2019-12-03 G. Ya. Korenman , S. N. Yudin

We study the motion (translational, vibrational, and rotational) of a diatomic impurity immersed in an electron liquid and exposed to electronic current. An approach based on the linear response time-dependent density functional theory…

Materials Science · Physics 2024-07-12 Vladimir U. Nazarov , Tchavdar N. Todorov , E. K. U. Gross

Within Density Functional Theory, we have calculated the energy of the transitions from the ground state to the first two excited states in the electron bubbles in liquid helium at pressures from zero to about the solidification pressure.…

Soft Condensed Matter · Physics 2016-08-16 Víctor Grau , Manuel Barranco , Ricardo Mayol , Martí Pi

The electronic stopping power of nickel-based equiatomic solid solutions alloys NiCr, NiFe and NiCo for protons and alpha projectiles is investigated in detail using real-time time-dependent density functional theory over a wide range of…

Materials Science · Physics 2020-07-20 Edwin E. Quashie , Rafi Ullah , Xavier Andrade , Alfredo A. Correa

We investigate in the framework of linear response theory the complete phonon dispersion, phonon induced electronic charge response, electron-phonon interaction and dielectric and infrared properties of the high-temperature superconductors…

Superconductivity · Physics 2009-11-10 Claus Falter

We consider excitation of highly charged hydrogen-like ions by the impact of equivelocity electrons and protons. The kinetic energy of the protons is more than three orders of magnitude larger than that of the equivelocity electrons. It is…

Atomic Physics · Physics 2015-06-15 B. Najjari , A. B. Voitkiv

The electronic stopping power ($S_e$) of water vapor (H$_2$O), hydrogen (H$_2$) and oxygen (O$_2$) gases for protons in a broad range of energies, centered in the Bragg peak, was calculated using real-time time-dependent density functional…

Density Functional Theory (DFT) calculations show a weak interaction between hydrogen and helium in iron, in contrast to previous reports of a strong trapping of hydrogen at helium. The strong preference of He and H to occupy regions with…

Materials Science · Physics 2012-10-22 C. J. Ortiz , R. Vila , J. M. Pruneda

The electric conductivity of ionic solutions is well understood at low ionic concentrations of up to a few millimolar but becomes difficult to unravel at higher concentrations that are still common in nature and technological applications.…

Soft Condensed Matter · Physics 2023-01-03 Yael Avni , David Andelman , Henri Orland

We present an all-electron study of the dynamical density-response function of hexagonal close-packed transition metals Sc and Ti. We elucidate various aspects of the interplay between the crystal structure and the electron dynamics by…

Materials Science · Physics 2007-05-23 I. G. Gurtubay , Wei Ku , J. M. Pitarke , A. G. Eguiluz
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