Core electrons in the electronic stop** of heavy ions

R Ullah, E Artacho, AA Correa - Physical review letters, 2018 - APS
Electronic stop** power in the keV/Å range is accurately calculated from first principles for
high atomic-number projectiles and the effect of core states is carefully assessed. The …

[HTML][HTML] Efficient computational modeling of electronic stop** power of organic polymers for proton therapy optimization

F Matias, TF Silva, NE Koval, JJN Pereira… - Scientific Reports, 2024 - nature.com
This comprehensive study delves into the intricate interplay between protons and organic
polymers, offering insights into proton therapy in cancer treatment. Focusing on the influence …

Electronic stop** power in a narrow band gap semiconductor from first principles

R Ullah, F Corsetti, D Sánchez-Portal, E Artacho - Physical Review B, 2015 - APS
The direction and impact parameter dependence of electronic stop** power, along with its
velocity threshold behavior, is investigated in a prototypical small-band-gap semiconductor …

Optical response of silver clusters and their hollow shells from linear-response TDDFT

P Koval, F Marchesin, D Foerster… - Journal of Physics …, 2016 - iopscience.iop.org
We present a study of the optical response of compact and hollow icosahedral clusters
containing up to 868 silver atoms by means of time-dependent density functional theory. We …

Calculation of energy loss in antiproton collisions with many-electron systems using Ehrenfest's theorem

HJ Lüdde, M Horbatsch, T Kirchner - Physical Review A, 2021 - APS
Energy loss in collisions of charged projectiles with many-electron systems can be dealt with
in time-dependent density functional theory by invoking Ehrenfest's theorem for the time …

Ground-and excited-state scattering potentials for the stop** of protons in an electron gas

F Matias, RC Fadanelli, PL Grande… - Journal of Physics B …, 2017 - iopscience.iop.org
The self-consistent electron–ion potential V (r) is calculated for H+ ions in an electron gas
system as a function of the projectile energy to model the electronic stop** power for …

Stop** power of cluster ions in a free-electron gas from partial-wave analysis

F Matias, RC Fadanelli, PL Grande, NR Arista… - Physical Review A, 2018 - APS
A nonlinear model for the stop** power of cluster ions based on partial-wave analysis is
developed through the generalization of the induced density approach (IDA) model for the …

Vicinage effect in the energy loss of dimers: Experiment and calculations based on time-dependent density-functional theory

NE Koval, AG Borisov, LFS Rosa, EM Stori, JF Dias… - Physical Review A, 2017 - APS
We present a combined theoretical and experimental study of the energy loss of H 2+
molecular ions interacting with thin oxide and carbon films. As a result of quantum …

Modeling of Proton Interaction with Organic Polymers: Implications for Cancer Therapy and Beyond

F Matias, TF Silva, NE Koval, JJN Pereira… - arxiv preprint arxiv …, 2024 - arxiv.org
This comprehensive study delves into the intricate interplay between protons and organic
polymers, offering insights into proton therapy in cancer treatment. Focusing on the influence …

Time-dependent density functional theory calculations of electronic friction in non-homogeneous media

NE Koval, D Sánchez-Portal, AG Borisov… - Physical Chemistry …, 2022 - pubs.rsc.org
The excitation of low-energy electron–hole pairs is one of the most relevant processes in the
gas–surface interaction. An efficient tool to account for these excitations in simulations of …