L. Havela, M. Paukov, I. Tkach, Volodymyr Buturlim, Zdeněk Matěj, S. Mašková, I. Turek, M. Diviš, Daria Drozdenko, Miroslav Cieslar, Milan Dopita, Zuzana Molčanová, M. Mihálik,
Tópico(s): Fusion materials and technologies
2016 - Springer Science+Business Media | MRS Advances
L. Havela, M. Paukov, Volodymyr Buturlim, I. Tkach, Daria Drozdenko, Miroslav Cieslar, S. Mašková, Milan Dopita, Zdeněk Matěj,
Metallic $5f$ materials have very strong coupling of magnetic moments and electrons mediating electrical conduction. It is caused by strong spin-orbit interaction, coming with high atomic number $Z$, together with involvement of the $5f$ states in metallic bonding. We have used the recently discovered class of uranium (ultra)nanocrystalline hydrides, which are ferromagnets with high ordering temperature, to disentangle the origin of negative temperature coefficient of electrical resistivity. In general, ...
Tópico(s): Nuclear Materials and Properties
2017 - American Physical Society | Physical review. B./Physical review. B
Jiří Cieslar, Milan Brožek, Bohumír Bednář,
In both the engineering and the agricultural industries, components that are no longer considered entirely fit for purpose are already being exchanged for new parts that have a longer operating life. Today's fast developing industrial sectors are making higher demands on standards for the quality of their components. Such components and their lifetimes are very closely linked to the discovery of new materials which will better meet the requirements of the individual industries. This paper describes ...
Tópico(s): Powder Metallurgy Techniques and Materials
2013 - Jan Evangelista Purkyně University in Ústí nad Labem | MANUFACTURING TECHNOLOGY
Tereza Kretková, Jan Hanuš, Ondřej Kylián, Pavel Solař, Milan Dopita, Miroslav Cieslar, Ivan Khalakhan, Andrei Choukourov, Hynek Biederman,
Tópico(s): Ion-surface interactions and analysis
2019 - Institute of Physics | Journal of Physics D Applied Physics
Andrei Choukourov, Daniil Nikitin, Pavel Pleskunov, Renata Tafiichuk, Kateryna Biliak, Mariia Protsak, Ksenia Kishenina, Jan Hanuš, Milan Dopita, Miroslav Cieslar, Tomáš Popelář, Lukáš Ondič, M. Varga,
Colloidal solutions of metal nanoparticles (NPs) are typically produced by multi-step methods using a variety of chemicals. Resultant nanofluids require extra purification steps to remove the reactions by-products and modification steps to introduce anticoagulants for the solution stabilization. Here, we suggest a single-step method to produce nanofluid in which only two components are present: 22 nm-sized Cu NPs as a filler and polyethylene glycol (PEG, 400 g/mol) as a liquid base. The method employs ...
Tópico(s): Nanocluster Synthesis and Applications
2021 - Elsevier BV | Journal of Molecular Liquids
Kateryna Biliak, Mariia Protsak, Pavel Pleskunov, Daniil Nikitin, Jan Hanuš, Suren Ali‐Ogly, Ján Šomvársky, Marco Tosca, Miroslav Cieslar, Tereza Košutová, Milan Dopita, Franck Lopes Ferreira, Andrei Choukourov,
Group IV transition metal (III) nitrides (MeN) are plasmonic materials that possess high optical absorption cross-sections and fast electron–phonon coupling that make them attractive in solar energy harvesting. Nanoparticles (NPs) of MeN dispersed in host liquids were predicted to be useful in photothermal energy conversion, although such nanofluids have never been systematically studied, mainly because of the complexity of their preparation. This research introduces reactive magnetron sputtering of ...
Tópico(s): Copper-based nanomaterials and applications
2023 - American Chemical Society | ACS Applied Nano Materials
Tereza Košutová, Lukáš Horák, Pavel Pleskunov, Jan Hanuš, Daniil Nikitin, Peter Kúš, Miroslav Cieslar, Ivan Gordeev, Sanja Burazer, Andrei Choukourov, Milan Dopita,
Highly porous structures consisting of niobium nanoparticles (Nb NPs) are prepared using magnetron sputtering and inert gas aggregation method. Alongside the thermally-driven evolution of nanoparticle morphology, the microstructural genesis is probed in-situ by x-ray diffraction for the temperature range up to 800 °C. The as-deposited Nb NPs are formed by the Nb core and NbOx shell. The elevated temperature triggers the gradual oxidation that proceeds until 200 °C. Above this point the structure is ...
Tópico(s): Catalytic Processes in Materials Science
2021 - Elsevier BV | Materials Chemistry and Physics
Milan Cieslar, Tomas Koudela, Gabriela Pienias, Tomáš Barot,
In some applied sciences, the type of the qualitative research has been frequently appeared. However, the quantitative research can be also the useful methodology; even though, the statistical significance can increase the guarantee of the research. In this paper, the quantitative type of the methodology is presented on the applied practically realized research of the student's results in the area of the visual arts education. On the data, the statistical approaches for purposes of the paired comparisons ...
Tópico(s): AI and Multimedia in Education
2020 - Springer Nature | Advances in intelligent systems and computing
Pavel Pleskunov, Mariia Protsak, Zdeněk Krtouš, Tereza Košutová, Marco Tosca, Kateryna Biliak, Veronika Červenková, Daniil Nikitin, Jan Hanuš, Miroslav Cieslar, Ivan Gordeev, Milan Dopita, Michael Vorochta, Jaroslav Kousal, L. Martinů, Andrei Choukourov,
Abstract High‐temperature plasmonics deals with optically active nanostructures that can withstand high temperatures. A conventional approach relying on standalone noble metal nanoparticles fails to deliver refractory plasmonic nanomaterials, and an alternative route envisions metal nitrides. The main challenge remains the development of advanced synthesis techniques and the insight into thermal stability under real‐life application conditions. Here, hafnium nitride nanoparticles (HfN NPs) can be ...
Tópico(s): ZnO doping and properties
2024 - Wiley | Advanced Optical Materials
L. Havela, M. Paukov, Milan Dopita, Lukáš Horák, Miroslav Cieslar, Daria Drozdenko, Peter Minárik, I. Turek, M. Diviš, Dominik Legut, Lukáš Kývala, T. Gouder, Frank Huber, Alice Seibert, E. A. Tereshina-Chitrova,
Uranium hydride films with the β-UH3 structure were successfully synthesized using reactive sputter deposition. Their composition can be modified, if cooling the substrate to 177 K, by incorporating Mo as alloying element, in analogy to bulk nanocrystalline (UH3)-Mo hydrides. The films were in detail studied by in situ XPS (4f, 5d, 6p, valence band), valence-band UPS, and BIS, revealing variations of electronic structure with respect to U metal, confronted with ab initio calculations. We could identify ...
Tópico(s): Advanced Chemical Physics Studies
2019 - Elsevier BV | Journal of Electron Spectroscopy and Related Phenomena
Tereza Košutová, Lukáš Horák, Artem Shelemin, Mykhailo Vaidulych, Jan Hanuš, Hynek Biederman, Ondřej Kylián, Pavel Solař, Miroslav Cieslar, Andrei Choukourov, Milan Dopita,
Metal‐polymer nanocomposites have gained increasing attention due to the wide potential applications field. Synthesis of nanoparticles from the gas phase is an intensively studied alternative to the chemical preparation methods. We present a one‐step procedure that combines magnetron‐based gas aggregation cluster source of silver nanoparticles and simultaneous plasma‐enhanced chemical vapour deposition of hexamethyldisiloxane (HMDSO). The key parameter of the process, significantly influencing the ...
Tópico(s): Block Copolymer Self-Assembly
2020 - Wiley | Surface and Interface Analysis
Hana Libenská, Jan Hanuš, Tereza Košutová, Milan Dopita, Ondřej Kylián, Miroslav Cieslar, Andrei Choukourov, Hynek Biederman,
Abstract In this study, iron carbide nanoparticles (NPs) were prepared by the plasma‐based method using a gas aggregation source of NPs. In‐flight plasma treatment of the NPs was performed to improve their temporal stability. The auxiliary radiofrequency plasma used for the in‐flight treatment resulted in trapping of the NPs in the plasma for several 10s of seconds. Scanning electron microscopy and small‐angle X‐ray scattering analyses showed a decrease in the size of NPs due to the plasma treatment, ...
Tópico(s): Copper Interconnects and Reliability
2020 - Wiley | Plasma Processes and Polymers
Amir Mohammad Ahadi, Hana Libenská, Tereza Košutová, Miroslav Cieslar, Veronika Červenková, Dejan Prokop, Milan Dopita, Hynek Biederman, Jan Hanuš,
Abstract Controlled synthesis of core@shell nanoparticles (NPs) for certain applications is a difficult challenge in many nanotechnology projects. In this report, a conventional arrangement composed of a gas aggregation source (GAS) is employed to generate the core NPs, which are subsequently coated by the shell materials in a secondary planar magnetron sputtering. The important difference to the usual system is the application of the two opposing planar magnetrons in a closed field configuration. ...
Tópico(s): Gold and Silver Nanoparticles Synthesis and Applications
2022 - Institute of Physics | Journal of Physics D Applied Physics
Pavel Pleskunov, Vadym Prysiazhnyi, Daniil Nikitin, Tereza Košutová, Miroslav Cieslar, Ivan Gordeev, Zdeněk Krtouš, Suren Ali‐Ogly, Ján Šomvársky, Mariia Protsak, Kateryna Biliak, Ksenia Kishenina, Antonín Bednařík, Milan Dopita, Jan Preisler, Andrei Choukourov,
Precise molecular identification of specific biomarkers in biological tissues is essential for accurate diagnostics of various diseases, injuries, and other clinically relevant issues. Surface-assisted laser desorption/ionization mass spectrometry imaging (SALDI MSI) has emerged as a powerful tool for biochemical analysis, particularly using noble-metal nanoparticle (NP) matrices. These are often, but not always, synthesized using wet chemistry approaches. Here, we report on NPs of naturally monoisotopic ...
Tópico(s): Bacterial Identification and Susceptibility Testing
2022 - American Chemical Society | ACS Applied Nano Materials
Mariia Protsak, Veronika Červenková, Daniil Nikitin, Suren Ali‐Ogly, Zdeněk Krtouš, Kateryna Biliak, Pavel Pleskunov, Marco Tosca, Ronaldo Katuta, Hynek Biederman, Bill Baloukas, L. Martinů, Lucia Bajtošová, Miroslav Cieslar, Milan Dopita, А. Х. Шукуров,
Tópico(s): Diamond and Carbon-based Materials Research
2025 - American Chemical Society | ACS Applied Nano Materials
E. A. Tereshina-Chitrova, L. Havela, M. Paukov, Oleksandra Koloskova, Lukáš Horák, Milan Dopita, Mayerling Martinez Celis, Miroslav Cieslar, Z. Šobáň, T. Gouder, Frank Huber,
Formation of thin uranium hydrides films, UH2 and \b{eta}-UH3, synthesized by a reactive dc sputtering of uranium metal, was explored using variable deposition conditions. Obtained stable oxygen-free hydride films were studied by a variety of methods, both in situ (photoelectron spectroscopy - XPS), and ex-situ (x-ray diffraction - XRD, transmission electron microscopy - TEM), electrical resistivity, and magnetometry). Both types of hydrides are ferromagnetic, the Curie temperatures of UH2 and \b{eta}-UH3 ...
Tópico(s): Fusion materials and technologies
2023 - Elsevier BV | Thin Solid Films
Marta Tibiletti, Andrea Bianchi, Åsmund Kjørstad, Stefan Wundrak, Detlef Stiller, Volker Rasche,
... 173: 255– 263. 12 Zurek M, Bessaad A, Cieslar K, Crémillieux Y. Validation of simple and robust ... Proceedings of the 22th Annual Meeting of ISMRM, Milan, Italy, 2014. 21 Weick, S, Ehses, P, Blaimer, ...
Tópico(s): Electron Spin Resonance Studies
2016 - Wiley | Magnetic Resonance in Medicine
Sara Conti, Paola Cassis, Ariela Benigni,
... RA, Krebs C, Hirsch-Hoffmann B, Schwedhelm E, Cieslar G, Schmidt-Haupt R, Steinmetz OM, Meyer-Schwesinger ...
Tópico(s): Renin-Angiotensin System Studies
2012 - Lippincott Williams & Wilkins | Hypertension