Zobrazeno 1 - 10
of 66
pro vyhledávání: '"Paściak, Marek"'
Publikováno v:
Physical Review Letters 133, 066802 (2024)
Typical magnetic skyrmion is a string of inverted magnetization within a ferromagnet, protected by a sleeve of a vortex-like spin texture, such that its cross-section carries a positive integer topological charge. Some magnets form antiskyrmions, the
Externí odkaz:
http://arxiv.org/abs/2303.07389
Autor:
Marton, Pavel, Gonçalves, Mauro A. P., Paściak, Marek, Körbel, Sabine, Chumchal, Věnceslav, Plešinger, Martin, Klíč, Antonín, Hlinka, Jirka
Publikováno v:
Physical Review B 107, 094102 (2023)
We report a theoretical investigation of a charged 180$^\circ$ domain wall in ferroelectric PbTiO$_3$, compensated by randomly distributed immobile charge defects. For this we utilize atomistic shell-model simulations and continuous phase-field simul
Externí odkaz:
http://arxiv.org/abs/2211.04828
Autor:
Veerapandiyan, Vignaswaran, Popov, Maxim N., Mayer, Florian, Spitaler, Jürgen, Svirskas, Sarunas, Kalendra, Vidmantas, Lins, Jonas, Canu, Giovanna, Buscaglia, Maria Teresa, Pasciak, Marek, Banys, Juras, Groszewicz, Pedro B., Buscaglia, Vincenzo, Hlinka, Jiri, Deluca, Marco
It is well known that disordered relaxor ferroelectrics exhibit local polar correlations. The origin of localized fields that disrupt long range polar order for different substitution types, however, is unclear. Currently, it is known that substituen
Externí odkaz:
http://arxiv.org/abs/2111.11179
Autor:
Kniazeva, Maria A., Ganzha, Alexander E., Jankowska-Sumara, Irena, Pasciak, Marek, Majchrowski, Andrzej, Filimonov, Alexey V., Rudskoy, Andrey I., Roleder, Krystian, Burkovsky, Roman G.
Perovskite solid solutions PbHfO3-PbSnO3 offer valuable opportunities for studying the formation mechsnisms of incommensurate phases, owing to the presence of an intermediate (between cubic and incommensurate) phase, which is stabilized in PbHfO3 upo
Externí odkaz:
http://arxiv.org/abs/2110.07377
Autor:
Li, Qian, Stoica, Vladimir A., Paściak, Marek, Zhu, Yi, Yuan, Yakun, Yang, Tiannan, McCarter, Margaret R., Das, Sujit, Yadav, Ajay K., Park, Suji, Dai, Cheng, Lee, Hyeon Jun, Ahn, Youngjun, Marks, Samuel D., Yu, Shukai, Kadlec, Christelle, Sato, Takahiro, Hoffmann, Matthias C., Chollet, Matthieu, Kozina, Michael E., Nelson, Silke, Zhu, Diling, Walko, Donald A., Lindenberg, Aaron M., Evans, Paul G., Chen, Long-Qing, Ramesh, Ramamoorthy, Martin, Lane W., Gopalan, Venkatraman, Freeland, John W., Hlinka, Jirka, Wen, Haidan
The collective dynamics of topological structures have been of great interest from both fundamental and applied perspectives. For example, the studies of dynamical properties of magnetic vortices and skyrmions not only deepened the understanding of m
Externí odkaz:
http://arxiv.org/abs/2102.05746
Akademický článek
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Publikováno v:
Phys. Rev. B 96, 174110 (2017)
The work describes a first-principles-based computational strategy for studying structural phase transitions, and in particular, for determination of the so-called Landau-Devonshire potential - the classical zero-temperature limit of the Gibbs energy
Externí odkaz:
http://arxiv.org/abs/1705.08235
Autor:
Petzelt, Jan, Nuzhnyy, Dmitry, Bovtun, Viktor, Pasciak, Marek, Kamba, Stanislav, Dittmer, Robert, Svirskas, Sarunas, Banys, Juras, Rodel, Jurgen
Dynamics of the main dielectric anomaly in Na1/2Bi1/2TiO3 (NBT) was studied by time-domain THz and microwave spectroscopy, using also previously published data and their new overall fits. Above the dielectric maximum temperature Tm ~ 600 K, the respo
Externí odkaz:
http://arxiv.org/abs/1407.7444
We describe length and time rescaling across the paraelectric to ferroelectric phase transition in BaTiO$_3$. Small ferroelectric clusters are unable to grow in the paraelectric phase and exist for a short period of time only. The onset of the phase
Externí odkaz:
http://arxiv.org/abs/0901.4560
Akademický článek
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