Zobrazeno 1 - 10
of 10 060
pro vyhledávání: '"Tkach, A. A."'
Autor:
Tkach, Olena, Schoenhense, Gerd
The strong electric field between the sample and the extractor is the core of cathode lenses and a pivotal determinant of high resolution. Nevertheless, fields in the range of 3-8 kV/mm can be a source of complications. Local field enhancement at sha
Externí odkaz:
http://arxiv.org/abs/2408.10104
Autor:
Elmers, H. J., Tkach, O., Lytvynenko, Y., Yogi, P., Schmitt, M., Biswas, D., Liu, J., Chernov, S. V., Hoesch, M., Kutnyakhov, D., Wind, N., Wenthaus, L., Scholz, M., Rossnagel, K., Gloskovskii, A., Schlueter, C., Winkelmann, A., Haghighirad, A. -A., Lee, T. -L., Sing, M., Claessen, R., Tacon, M. Le, Demsar, J., Schonhense, G., Fedchenko, O.
Using x-ray photoelectron diffraction (XPD) and angle-resolved photoemission spectroscopy, we study photoemission intensity changes related to changes in the geometric and electronic structure in the kagome metal CsV$_3$Sb$_5$ upon transition to an u
Externí odkaz:
http://arxiv.org/abs/2408.03750
Autor:
Dobrykh, Dmitry, Mikhailovskaya, Anna, Grotov, Konstantin, Vovchuk, Dmytro, Tkach, Vladyslav, Khobzei, Mykola, Kharchevskii, Anton, Glam, Aviel, Ginzburg, Pavel
The rapidly growing volume of drone air traffic demands improved radar surveillance systems and increased detection reliability in challenging conditions. The scattering cross-section, which characterizes a target's radar visibility, is a key element
Externí odkaz:
http://arxiv.org/abs/2408.01170
Autor:
Schmitt, Matthias, Biswas, Deepnarayan, Tkach, Olena, Fedchenko, Olena, Liu, Jieyi, Elmers, Hans-Joachim, Sing, Michael, Claessen, Ralph, Lee, Tien-Lin, Schönhense, Gerd
Soft X-ray momentum microscopy of crystalline solids is a highly efficient approach to map the photoelectron distribution in four-dimensional (E,k) parameter space over the entire Brillouin zone. The fixed sample geometry eliminates any modulation of
Externí odkaz:
http://arxiv.org/abs/2406.00771
Autor:
Yang, Chenhongyi, Tkach, Anastasia, Hampali, Shreyas, Zhang, Linguang, Crowley, Elliot J., Keskin, Cem
We present EgoPoseFormer, a simple yet effective transformer-based model for stereo egocentric human pose estimation. The main challenge in egocentric pose estimation is overcoming joint invisibility, which is caused by self-occlusion or a limited fi
Externí odkaz:
http://arxiv.org/abs/2403.18080
Autor:
Vovchuk, Dmytro, Khobzei, Mykola, Tkach, Vladyslav, Eliiashiv, Oleg, Tzidki, Omer, Grotov, Konstantin, Glam, Aviel, Ginzburg, Pavel
The forthcoming era of massive drone delivery deployment in urban environments raises a need to develop reliable control and monitoring systems. While active solutions, i.e., wireless sharing of a real-time location between air traffic participants a
Externí odkaz:
http://arxiv.org/abs/2402.04368
Autor:
Tkach, O., Fragkos, S., Nguyen, Q., Chernov, S., Scholz, M., Wind, N., Babenkov, S., Fedchenko, O., Lytvynenko, Y., Zimmer, D., Hloskovskii, A., Kutnyakhov, D., Pressacco, F., Dilling, J., Bruckmeier, L., Heber, M., Scholz, F., Sobota, J., Koralek, J., Sirica, N., Kallmayer, M., Hoesch, M., Schlueter, C., Odnodvorets, L. V., Mairesse, Y., Rossnagel, K., Elmers, H. -J., Beaulieu, S., Schoenhense, G.
We have experimentally demonstrated different operating modes for the front lenses of the momentum microscopes described in Part I. Measurements at energies from vacuum UV at a high-harmonic generation (HHG)-based source to the soft and hard X-ray ra
Externí odkaz:
http://arxiv.org/abs/2401.10084
Autor:
Fedchenko, O., Diekmann, F. K., Russmann, P., Kallmayer, M., Odenbreit, L., Souliou, S. M., Frachet, M., Winkelmann, A., Merz, M., Chernov, S. V., Vasilyev, D., Kutnyakhov, D., Tkach, O., Lytvynenko, Y., Medjanik, K., Schlueter, C., Gloskovskii, A., Peixoto, T. R. F., Hoesch, M., Tacon, M. Le, Mokrousov, Y., Rossnage, K., Schönhense, G., Elmers, H. -J.
A comprehensive study of the electronic and structural phase transition from 1T` to Td in the bulk Weyl semimetal Mo1-xWxTe2 at different doping concentrations has been carried out using time-of-flight momentum microscopy (including circular and line
Externí odkaz:
http://arxiv.org/abs/2310.10593
Autor:
Fedchenko, O., Song, Y. -J., Tkach, O., Lytvynenko, Y., Chernov, S. V., Gloskovskii, A., Schlueter, C., Peters, M., Kliemt, K., Krellner, C., Valentí, R., Schönhense, G., Elmers, H. J.
We present results of hard X-ray angle-resolved photoemission spectroscopy and photoemission diffraction measurements performed on high-quality single crystals of the valence transition compound EuPd$_2$Si$_2$ for temperatures 25~K $\leq$ T $\leq$ 30
Externí odkaz:
http://arxiv.org/abs/2310.06421
Publikováno v:
Успехи физики металлов, Vol 25, Iss 3, Pp 600-613 (2024)
Depending on the 3D-printing orientation, the anisotropy of the elastic characteristics of the Inconel 625 alloy generated with selective laser sintering from powders is investigated. The impact of the original powder combination and the following he
Externí odkaz:
https://doaj.org/article/8b1ddc2434a64d369e43d3a342ec9dd8