Zobrazeno 1 - 10
of 2 852
pro vyhledávání: '"Yaroslavtsev, A. A."'
Contrastive learning is a highly successful technique for learning representations of data from labeled tuples, specifying the distance relations within the tuple. We study the sample complexity of contrastive learning, i.e. the minimum number of lab
Externí odkaz:
http://arxiv.org/abs/2312.00379
Publikováno v:
Journal of Synchrotron Radiation, Vol 31, Iss 5, Pp 1241-1248 (2024)
Developing new materials for Li-ion and Na-ion batteries is a high priority in materials science. Such development always includes performance tests and scientific research. Synchrotron radiation techniques provide unique abilities to study batteries
Externí odkaz:
https://doaj.org/article/908d2ddf9f72407e8e69aa4fe09e0d03
Autor:
Shokeen, Vishal, Heber, Michael, Kutnyakhov, Dmytro, Wang, Xiaocui, Yaroslavtsev, Alexander, Maldonado, Pablo, Berritta, Marco, Wind, Nils, Wenthaus, Lukas, Pressacco, Federico, Min, Chul-Hee, Nissen, Matz, Mahatha, Sanjoy K., Dziarzhytski, Siarhei, Oppeneer, Peter M., Rossnagel, Kai, Elmers, Hans-Joachim, Schönhense, Gerd, Dürr, Hermann A.
Identifying the microscopic nature of non-equilibrium energy transfer mechanisms among electronic, spin and lattice degrees of freedom is central for understanding ultrafast phenomena such as manipulating magnetism on the femtosecond timescale. Here
Externí odkaz:
http://arxiv.org/abs/2306.10637
Autor:
Lojewski, Tobias, Golez, Denis, Ollefs, Katharina, Guyader, Loïc Le, Kämmerer, Lea, Rothenbach, Nico, Engel, Robin Y., Miedema, Piter S., Beye, Martin, Chiuzbăian, Gheorghe S., Carley, Robert, Gort, Rafael, Van Kuiken, Benjamin E., Mercurio, Giuseppe, Schlappa, Justina, Yaroslavtsev, Alexander, Scherz, Andreas, Döring, Florian, David, Christian, Wende, Heiko, Bovensiepen, Uwe, Eckstein, Martin, Werner, Philipp, Eschenlohr, Andrea
Photo-doped states in strongly correlated charge transfer insulators are characterized by $d$-$d$ and $d$-$p$ interactions and the resulting intertwined dynamics of charge excitations and local multiplets. Here we use femtosecond x-ray absorption spe
Externí odkaz:
http://arxiv.org/abs/2305.10145
Autor:
Parchenko, Sergii, Frej, Antoni, Ueda, Hiroki, Carley, Robert, Mercadier, Laurent, Gerasimova, Natalia, Mercurio, Giuseppe, Schlappa, Justine, Yaroslavtsev, Alexander, Agarwal, Naman, Gort, Rafael, Scherz, Andreas, Zvezdin, Anatoly, Stupakiewicz, Andrzej, Staub, Urs
Publikováno v:
Adv. Sci. 10, 2302550 (2023)
Resonant absorption of a photon by bound electrons in a solid can promote an electron to another orbital state or transfer it to a neighboring atomic site. Such a transition in a magnetically ordered material could affect the magnetic order. While th
Externí odkaz:
http://arxiv.org/abs/2304.08890
Autor:
Avdiukhin, Dmitrii, Yaroslavtsev, Grigory, Vainstein, Danny, Fischer, Orr, Das, Sauman, Mirza, Faraz
We study the problem of learning a hierarchical tree representation of data from labeled samples, taken from an arbitrary (and possibly adversarial) distribution. Consider a collection of data tuples labeled according to their hierarchical structure.
Externí odkaz:
http://arxiv.org/abs/2302.04492
Autor:
Engel, Robin Y., Alexander, Oliver, Atak, Kaan, Bovensiepen, Uwe, Buck, Jens, Carley, Robert, Cascella, Michele, Chardonnet, Valentin, Chiuzbaian, Gheorghe Sorin, David, Christian, Döring, Florian, Eschenlohr, Andrea, Gerasimova, Natalia, de Groot, Frank, Guyader, Loïc Le, Humphries, Oliver S., Izquierdo, Manuel, Jal, Emmanuelle, Kubec, Adam, Laarmann, Tim, Lambert, Charles-Henri, Lüning, Jan, Marangos, Jonathan P., Mercadier, Laurent, Mercurio, Giuseppe, Miedema, Piter S., Ollefs, Katharina, Pfau, Bastian, Rösner, Benedikt, Rossnagel, Kai, Rothenbach, Nico, Scherz, Andreas, Schlappa, Justine, Scholz, Markus, Schunck, Jan O., Setoodehnia, Kiana, Stamm, Christian, Techert, Simone, Vinko, Sam M., Wende, Heiko, Yaroslavtsev, Alexander A., Yin, Zhong, Beye, Martin
The pulse intensity from X-ray free-electron lasers (FELs) can create extreme excitation densities in solids, entering the regime of non-linear X-ray-matter interactions. We show L3-edge absorption spectra of metallic nickel thin films with fluences
Externí odkaz:
http://arxiv.org/abs/2211.17008
Autor:
Guyader, Loïc Le, Eschenlohr, Andrea, Beye, Martin, Schlotter, William, Döring, Florian, Carinan, Cammille, Hickin, David, Agarwal, Naman, Boeglin, Christine, Bovensiepen, Uwe, Buck, Jens, Carley, Robert, Castoldi, Andrea, D'Elia, Alessandro, Delitz, Jan-Torben, Ehsan, Wajid, Engel, Robin, Erdinger, Florian, Fangohr, Hans, Fischer, Peter, Fiorini, Carlo, Föhlisch, Alexander, Gelisio, Luca, Gensch, Michael, Gerasimova, Natalia, Gort, Rafael, Hansen, Karsten, Hauf, Steffen, Izquierdo, Manuel, Jal, Emmanuelle, Kamil, Ebad, Karabekyan, Suren, Kluyver, Thomas, Laarmann, Tim, Lojewski, Tobias, Lomidze, David, Maffessanti, Stefano, Mamyrbayev, Talgat, Marcelli, Augusto, Mercadier, Laurent, Mercurio, Giuseppe, Miedema, Piter S., Ollefs, Katharina, Rossnagel, Kai, Rösner, Benedikt, Rothenbach, Nico, Samartsev, Andrey, Schlappa, Justine, Setoodehnia, Kiana, Chiuzbaian, Gheorghe Sorin, Spieker, Lea, Stamm, Christian, Stellato, Francesco, Techert, Simone, Teichmann, Martin, Turcato, Monica, Van Kuiken, Benjamin, Wende, Heiko, Yaroslavtsev, Alexander, Zhu, Jun, Molodtsov, Serguei, David, Christian, Porro, Matteo, Scherz, Andreas
Publikováno v:
J. Synchrotron Rad. (2023). 30, 284-300
Femtosecond transient soft X-ray Absorption Spectroscopy (XAS) is a very promising technique that can be employed at X-ray Free Electron Lasers (FELs) to investigate out-of-equilibrium dynamics for material and energy research. Here we present a dedi
Externí odkaz:
http://arxiv.org/abs/2211.04265
Autor:
Lojewski, Tobias, Elhanoty, Mohamed F., Guyader, Loïc Le, Grånäs, Oscar, Agarwal, Naman, Boeglin, Christine, Carley, Robert, Castoldi, Andrea, David, Christian, Deiter, Carsten, Döring, Florian, Engel, Robin Y., Erdinger, Florian, Fangohr, Hans, Fiorini, Carlo, Fischer, Peter, Gerasimova, Natalia, Gort, Rafael, de Groot, Frank, Hansen, Karsten, Hauf, Steffen, Hickin, David, Izquierdo, Manuel, Van Kuiken, Benjamin E., Kvashnin, Yaroslav, Lambert, Charles-Henri, Lomidze, David, Maffessanti, Stefano, Mercadier, Laurent, Mercurio, Giuseppe, Miedema, Piter S., Ollefs, Katharina, Pace, Matthias, Porro, Matteo, Rezvani, Javad, Rösner, Benedikt, Rothenbach, Nico, Samartsev, Andrey, Scherz, Andreas, Schlappa, Justina, Stamm, Christian, Teichmann, Martin, Thunstrom, Patrik, Turcato, Monica, Yaroslavtsev, Alexander, Zhu, Jun, Beye, Martin, Wende, Heiko, Bovensiepen, Uwe, Eriksson, Olle, Eschenlohr, Andrea
The complex electronic structure of metallic ferromagnets is determined by a balance between exchange interaction, electron hopping leading to band formation, and local Coulomb repulsion. The interplay between the respective terms of the Hamiltonian
Externí odkaz:
http://arxiv.org/abs/2210.13162
Autor:
Yaroslavtsev, Sergey1 (AUTHOR) sergey.yaroslavtsev@esrf.fr, Celse, Jean-Philippe1 (AUTHOR)
Publikováno v:
Journal of Synchrotron Radiation. Sep2024, Vol. 31 Issue 5, p1241-1248. 8p.