Search Results - "Kužel, Petr"

Terahertz Spectroscopy of Nanomaterials: a Close Look at Charge‐Carrier Transport by Kužel, Petr, Němec, Hynek

“…Terahertz spectroscopy has been used for almost two decades for investigations of nanomaterials, including nanocrystals, nanoparticles, nanowires, nanotubes or…”
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Improving security in terahertz wireless links using beam symmetry of vortex and Gaussian beams by Troha, Tinkara, Ostatnický, Tomáš, Kužel, Petr

“…We present an effective way to improve the security of a point-to-point terahertz wireless link on a physical layer supported by numerical calculations in the…”
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Undulations of Smectic A Layers in Achiral Liquid Crystals Manifested as Stripe Textures by Podoliak, Natalia, Salamon, Peter, Lejček, Lubor, Kužel, Petr, Novotná, Vladimíra

“…Self-assembly of organic molecules represents a fascinating playground to create various liquid crystalline nanostructures. In this Letter, we study layer…”
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Terahertz electrical writing speed in an antiferromagnetic memory by Olejník, Kamil, Seifert, Tom, Kašpar, Zdeněk, Novák, Vít, Wadley, Peter, Campion, Richard P, Baumgartner, Manuel, Gambardella, Pietro, Němec, Petr, Wunderlich, Joerg, Sinova, Jairo, Kužel, Petr, Müller, Melanie, Kampfrath, Tobias, Jungwirth, Tomas

“…The speed of writing of state-of-the-art ferromagnetic memories is physically limited by an intrinsic gigahertz threshold. Recently, realization of memory…”
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Water-Dispersible Small Monodisperse Electrically Conducting Antimony Doped Tin Oxide Nanoparticles by Peters, Kristina, Zeller, Patrick, Stefanic, Goran, Skoromets, Volodymyr, Němec, Hynek, Kužel, Petr, Fattakhova-Rohlfing, Dina

“…We describe the fabrication of crystalline electrically conducting antimony-doped tin oxide (ATO) nanoparticles highly dispersible in polar solvents such as…”
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Marxist criticism of Soviet-type society in Czechoslovakia: The political thought of Egon Bondy after 1968 by Kužel, Petr

“…This paper focuses on the development of the political thought of Czech Marxist philosopher Egon Bondy. It examines his criticism of state socialism in the…”
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Ultrafast Long-Distance Electron-Hole Plasma Expansion in GaAs Mediated by Stimulated Emission and Reabsorption of Photons by Troha, Tinkara, Klimovič, Filip, Ostatnický, Tomáš, Kadlec, Filip, Kužel, Petr, Němec, Hynek

“…Electron-hole plasma expansion with velocities exceeding c/50 and lasting over 10 ps at 300 K was evidenced by time-resolved terahertz spectroscopy. This…”
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Charge transport in nanostructured materials for solar energy conversion studied by time-resolved terahertz spectroscopy by Nemec, Hynek, Kuzel, Petr, Sundström, Villy

“…Spectra of far-infrared conductivity contain useful information on charge transport at nanoscopic length scales. However, decrypting the mechanisms and…”
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Structurally Unique Salts of Cyamemazine and Their Pharmaceutical Implications by Ramesh, Sreela, Skořepová, Eliška, Eigner, Václav, Paingad, Vaisakh Chelod, Zvoníček, Vít, Kužel, Petr, Šoóš, Miroslav

“…The aim of this study was to prepare new crystalline salts of cyamemazine, an antipsychotic drug, with dicarboxylic acids, and compare their thermal…”
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Far-infrared response of free charge carriers localized in semiconductor nanoparticles by Nemec, Hynek, Kuzel, Petr, Sundström, Villy

“…A Monte Carlo method is employed to calculate the dynamical conductivity in the terahertz range of free charge carriers localized in semiconductor…”
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Terahertz Magnetic and Lattice Excitations in van der Waals Ferromagnet VI3 by Hovančík, Dávid, Repček, Dalibor, Borodavka, Fedir, Kadlec, Christelle, Carva, Karel, Doležal, Petr, Kratochvílová, Marie, Kužel, Petr, Kamba, Stanislav, Sechovský, Vladimír, Pospíšil, Jiří

“…We use the synergy of infrared, terahertz, and Raman spectroscopies with DFT calculations to shed light on the magnetic and lattice properties of VI3. The…”
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Giant permittivity in dimethylamino-terminated ferroelectric nematogens by Cigl, Martin, Podoliak, Natalia, Landovský, Tomáš, Repček, Dalibor, Kužel, Petr, Novotná, Vladimíra

“…[Display omitted] •Outstanding ferroelectric properties in a new ferroelectric nematic phase.•New structural motif of molecules with extremely high…”
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Ultrafast Plasmon Thermalization in Epitaxial Graphene Probed by Time‐Resolved THz Spectroscopy by Paingad, Vaisakh C., Kunc, Jan, Rejhon, Martin, Rychetský, Ivan, Mohelský, Ivan, Orlita, Milan, Kužel, Petr

“…The control of carrier transport by electrical, chemical, or optical Fermi level tuning is central to graphene electronics. Here, an optical pump—terahertz…”
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Nanoscale terahertz conductivity and ultrafast dynamics of terahertz plasmons in periodic arrays of epitaxial graphene nanoribbons by Singh, Arvind, Němec, Hynek, Kunc, Jan, Kužel, Petr

“…The dynamics of plasmons in nanoribbons of (hydrogen intercalated) quasi-freestanding single-layer graphene is studied by terahertz spectroscopy both in the…”
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3D Graphene Straintronics for Broadband Terahertz Modulation by Kumar, Prabhat, Šilhavík, Martin, Parida, Manas R., Kužel, Petr, Červenka, Jiří

“…The increasing utilization of terahertz (THz) bandwidth in both industrial and private sectors highlights the significance of efficient terahertz shielding and…”
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Charge Transport in Single‐Crystalline GaAs Nanobars: Impact of Band Bending Revealed by Terahertz Spectroscopy by Pushkarev, Vladimir, Němec, Hynek, Paingad, Vaisakh C., Maňák, Jan, Jurka, Vlastimil, Novák, Vít, Ostatnický, Tomáš, Kužel, Petr

“…Arrays of ultimate‐quality single‐crystalline GaAs nanobars are prepared via electron‐beam lithography in a molecular‐beam‐epitaxy‐grown GaAs layer transferred…”
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Contrast in terahertz conductivity of phase-change materials by Kadlec, Filip, Kadlec, Christelle, Kužel, Petr

“…Time-domain terahertz spectroscopy was used to study the dielectric and conductive properties of thin films of four phase-change materials: GeTe, GeSb2Te4,…”
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Predicting Solar Cell Performance from Terahertz and Microwave Spectroscopy by Hempel, Hannes, Savenjie, Tom J., Stolterfoht, Martin, Neu, Jens, Failla, Michele, Paingad, Vaisakh C., Kužel, Petr, Heilweil, Edwin J., Spies, Jacob A., Schleuning, Markus, Zhao, Jiashang, Friedrich, Dennis, Schwarzburg, Klaus, Siebbeles, Laurens D.A., Dörflinger, Patrick, Dyakonov, Vladimir, Katoh, Ryuzi, Hong, Min Ji, Labram, John G., Monti, Maurizio, Butler‐Caddle, Edward, Lloyd‐Hughes, James, Taheri, Mohammad M., Baxter, Jason B., Magnanelli, Timothy J., Luo, Simon, Cardon, Joseph M., Ardo, Shane, Unold, Thomas

“…Mobilities and lifetimes of photogenerated charge carriers are core properties of photovoltaic materials and can both be characterized by contactless terahertz…”
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Photon-assisted ultrafast electron–hole plasma expansion in direct band semiconductors by Troha, Tinkara, Klimovič, Filip, Ostatnický, Tomáš, Němec, Hynek, Kužel, Petr

“…Time-resolved terahertz spectroscopy is used to investigate formation and ultrafast long-distance propagation of electron–hole plasma in strongly photoexcited…”
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A Frustrated Antipolar Phase Analogous to Classical Spin Liquids by Bastien, Gaël, Repček, Dalibor, Eliáš, Adam, Kancko, Andrej, Courtade, Quentin, Haidamak, Tetiana, Savinov, Maxim, Bovtun, Viktor, Kempa, Martin, Carva, Karel, Vališka, Michal, Doležal, Petr, Kratochvílová, Marie, Barnett, Sarah A, Proschek, Petr, Prokleška, Jan, Kadlec, Christelle, Kužel, Petr, Colman, Ross H, Kamba, Stanislav

“…The study of magnetic frustration in classical spin systems is motivated by the prediction and discovery of classical spin liquid states. These uncommon…”
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