1.5k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- FZU ‒ Institute of Physics of the Academy of Sciences of the Czech RepublicCZ90 papers
- Czech Academy of SciencesCZ51 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR26 papers
- Centre National de la Recherche ScientifiqueFR22 papers
- Max Planck Institute for Plasma PhysicsDE22 papers
- Charles UniversityCZ20 papers
- Culham Science CentreGB17 papers
- CEA CadaracheFR16 papers
- Czech Technical University in PragueCZ16 papers
- École Polytechnique Fédérale de LausanneCH15 papers
- P.N. Lebedev Physical Institute of the Russian Academy of SciencesRU13 papers
- Culham Centre for Fusion EnergyGB12 papers
54 papers · 1 filter
Ytterbium charge state and stabilization in the Ba(Ca)F host by electron paramagnetic resonance and infrared photoluminescence
David John, Shelja Sharma, Marius Stef +18
Lanthanide-doped fluorides are promising materials for advanced photonic and quantum applications due to their wide bandgap, low phonon energy, and chemical stability. In this work…
Phase Equilibria of the Al-Ti-Nb-Zr-Ta System
Jiří Kozlík, František Lukáč, Mariano Casas-Luna +8
Phase equilibria in the Al-Ti-Nb-Zr-Ta refractory complex concentrated alloy system were investigated using a high throughput experimental approach. A pseudo-ternary section of the…
Resistance of refractory high-entropy alloys to ultrafast laser irradiation
Nikita Medvedev
Response of refractory high-entropy alloys MoNbTaVW and HfNbTaTiZr to ultrafast laser radiation is modelled with the hybrid code XTANT-3, combining tight-binding molecular dynamics…
Radiation stability of nanocomposite scintillators
L. Prouzova Prochazkova, F. Hajek, M. Buryi +2
Radiation hardness of scintillating nanocomposites consisting of inorganic scintillating nanocrystalline powders dispersed in organic matrices was studied under electron, X-ray and…
Thermodynamic properties of CrMnFeCoNi high entropy alloy at elevated electronic temperatures
Nikita Medvedev
The Cantor alloy (equiatomic CrMnFeCoNi) is a high-entropy alloy with unique physical properties and radiation resistance. To model its response to intense laser pulses, the parame…
Magneto-elastic softening in cold-sprayed polycrystalline nickel studied by resonant ultrasound spectroscopy
Michaela Janovská, Petr Sedlák, Martin Ševčík +5
Cold-sprayed metallic deposits are additively manufactured materials containing high levels of compressive residual stress. Here we show that the presence and intensity of this str…
Creating mixed-phase states in cadmium sulfide by swift heavy ion irradiation
Aldo Artímez Peña, Nikita Medvedev
CdS has broad applications in solar cells and radiation detectors. We study its response to irradiation with swift heavy ions and determine its damage thresholds. We apply a model…
Effects of non-equilibrium in ultrafast irradiation of matter
Nikita Medvedev
This proceeding discusses nonequilibrium effects in matter exposed to XUV/X-ray irradiation. When ultrashort, intense XUV/X-ray pulses interact with materials, they trigger a compl…
Ultrafast X-ray induced damage and nonthermal melting in cadmium sulfide
Nikita Medvedev, Aldo Artímez Peña
Cadmium sulfide is a valuable material for solar cells, photovoltaic, and radiation detectors. It is thus important to evaluate the material damage mechanisms and damage threshold…
Anomalous Spectroscopical Effects in an Antiferromagnetic Semiconductor
Michal Hubert, Tomáš Maleček, Kyo-Hoon Ahn +6
Following the recent observation of anomalous Hall effect in antiferromagnetic hexagonal MnTe thin films, related phenomena at finite frequencies have come into focus. Magnetic cir…
Phase Composition of AlTiNbMoV, AlTiNbTaZr and AlTiNbMoCr Refractory Complex Concentrated Alloys: A Correlation of Predictions and Experiment
Jiří Kozlík, František Lukáč, Mariano Casas Luna +5
Designing complex concentrated alloys (CCA), also known as high entropy alloys (HEA), requires reliable and accessible thermodynamic predictions due to vast space of possible compo…
Scanning acoustic microscopy characterization of cold sprayed coatings deposited on grooved substrates
Martin Koller, Jan Cizek, Michaela Janovská +4
The effect of non-planar substrate surface on homogeneity and quality of cold sprayed (CS) deposits was studied by scanning acoustic microscopy (SAM). Fe coatings were cold sprayed…
Damage mechanisms in polyalkenes irradiated with ultra-short XUV/x-ray laser pulses
N. Nikishev, N. Medvedev
Although polymers are widely used in laser-irradiation research, their microscopic response to high-intensity ultrafast XUV or X-ray irradiation is still largely unknown. Here we c…
High-temperature threshold of damage of SiC by swift heavy ions
D. I. Zainutdinov, V. A. Borodin, S. A. Gorbunov +5
At ambient conditions, SiC is known to be resistant to irradiation with swift heavy ions (SHI) decelerating in the electronic stopping regime. However, there is no experimental dat…
Electronic heat conductivity in a two-temperature state
Nikita Medvedev, Fedor Akhmetov, Igor Milov
Laser irradiation of materials is most commonly modeled with the two-temperature model (TTM), or its combination with molecular dynamics, TTM-MD. For such modeling, the electronic…
Electron-phonon coupling in semiconductors at high electronic temperatures
Nikita Medvedev
A nonperturbative dynamical coupling approach based on tight-binding molecular dynamics is used to evaluate the electron-ion (electron-phonon) coupling parameter in irradiated semi…
Atomic-Scale Insights into Damage Produced by Swift Heavy Ions in Polyethylene
P. Babaev, F. Akhmetov, S. Gorbunov +4
We describe the formation of swift heavy ion tracks in polyethylene (PE) by combining the Monte Carlo code TREKIS, which models electronic excitation in nanometric proximity of the…
Materials under XUV irradiation: effects of structure, size, and temperature
Nikita Medvedev
This proceeding discusses the impact of XUV/X-ray irradiation on materials, and how their response is affected by temperature, size, and structure. When materials are exposed to in…
Frontiers, challenges, and solutions in modeling of swift heavy ion effects in materials
N. Medvedev, A. E. Volkov, R. Rymzhanov +4
Since a few breakthroughs in the fundamental understanding of the effects of swift heavy ions (SHI) decelerating in the electronic stopping regime in the matter have been achieved…
Damage threshold in pre-heated materials exposed to intense X-rays
Nikita Medvedev, Zuzana Kuglerová, Mikako Makita +2
Materials exposed to ultrashort intense x-ray irradiation may experience various damaging conditions depending on the in-situ temperature. A pre-heated target exposed to intense x-…
Nonthermal effects in solids after swift heavy ion impact
N. Medvedev, R. Voronkov, A. E. Volkov
This contribution is a brief introduction to nonthermal effects related to modifications of the interatomic potential upon ultrafast excitation of the electronic system of solids,…
Superionic states formation in group III oxides irradiated with ultrafast lasers
R. A. Voronkov, N. Medvedev, A. E. Volkov
A number of group III-metal oxides are studied via density functional theory in order to establish a possibility of nonthermal transition of these materials into a superionic state…
Reconciling anomalously fast heating rate in ion tracks with low electron-phonon coupling
Nikita Medvedev, Alexander E. Volkov
Formation of swift heavy ion tracks requires extremely fast energy transfer between excited electrons and a lattice. However, electron-phonon energy exchange is too slow, as known…
Contribution of inter- and intraband transitions into electron-phonon coupling in metals
Nikita Medvedev, Igor Milov
We recently developed an approach for calculation of the electron-phonon (electron-ion in a more general case) coupling in materials based on tight-binding molecular dynamics simul…