Zobrazeno 1 - 10
of 578
pro vyhledávání: '"Pospíšil, Jiří"'
Autor:
Klicpera, Milan, Michal, Ondrej, Hovancik, David, Carva, Karel, Rosa, Oscar Ramon Fabelo, Orlita, M., Sechovsky, Vladimir, Pospisil, Jiri
VBr$_3$ is a van der Waals antiferromagnet below the N\'eel temperature of 26.5 K with a saturation moment of 1.2 mB/f.u. above the metamagnetic transitions detected in the in-plane and out-of-plane directions. To reveal the AFM structure of VBr$_3$
Externí odkaz:
http://arxiv.org/abs/2407.16253
Autor:
Repček, Dalibor, Proschek, Petr, Savinov, Maxim, Kachlík, Martin, Pospíšil, Jiří, Drahokoupil, Jan, Doležal, Petr, Prokleška, Jan, Kamba, Stanislav
Based on the earlier published theory (\textit{Nature Mat}. \textbf{18}, 223--228 (2019)), a comprehensive experimental investigation of multiferroic quantum critical behavior of (Eu,Ba,Sr)TiO$_3$ polycrystalline and single crystal samples was perfor
Externí odkaz:
http://arxiv.org/abs/2401.04677
Autor:
Doležal, Petr, Kratochvílová, Marie, Hovančík, Dávid, Holý, Václav, Sechovský, Vladimír, Pospíšil, Jiří
CrI$_3$ represents one of the most important van der Waals systems on the route to understanding two-dimensional magnetic phenomena. Being arranged in a specific layered structure it also provides a unique opportunity to investigate structural transf
Externí odkaz:
http://arxiv.org/abs/2308.14548
Autor:
Vališka, Michal, Haidamak, Tetiana, Cabala, Andrej, Pospíšil, Jiří, Bastien, Gaël, Yanagisawa, Tatsuya, Opletal, Petr, Sakai, Hironori, Haga, Yoshinori, Miyata, Atsuhiko, Zherlitsyn, Sergei, Sechovský, Vladimír, Prokleška, Jan
The first-order transition line in the \textit{H-T} phase diagram of itinerant electron metamagnets terminates at the critical end point-analogous to the critical point on the gas-liquid condensation line in the \textit{p-T} phase diagram. To unravel
Externí odkaz:
http://arxiv.org/abs/2307.01884
Autor:
Hovančík, Dávid, Kratochvílová, Marie, Haidamak, Tetiana, Doležal, Petr, Carva, Karel, Bendová, Anežka, Prokleška, Jan, Proschek, Petr, Míšek, Martin, Gorbunov, Denis I., Kotek, Jan, Sechovský, Vladimír, Pospíšil, Jiří
Publikováno v:
Physical Review B 108, 104416 (2023)
We studied magnetic states and phase transitions in the van der Waals antiferromagnet VBr3 by specific heat and magnetization measurements of single crystals in high magnetic fields and by ab initio density functional theory calculations focused on e
Externí odkaz:
http://arxiv.org/abs/2303.11794
Autor:
Zajic, Frantisek, Klejch, Martin, Elias, Adam, Klicpera, Milan, Beitlerova, Alena, Nikl, Martin, Pospisil, Jiri
We report on single crystal growth of laser material Nd:YAG widely used in the applications by innovative crucible-free floating zone method implemented in an advanced laser optical furnace. We have optimized the parameters for the production of high
Externí odkaz:
http://arxiv.org/abs/2212.07662
Publikováno v:
Nano Lett. 2023, 23, 4, 1175
The existence of the V3+ ion orbital moment is the open issue of the nature of magnetism in the van der Waals ferromagnet VI3. The huge magnetocrystalline anisotropy in conjunction with the significantly reduced ordered magnetic moment compared to th
Externí odkaz:
http://arxiv.org/abs/2210.11278
Autor:
Hovancik, David, Repcek, Dalibor, Borodavka, Fedir, Kadlec, Christelle, Dolezal, Petr, Kratochvilova, Marie, Kuzel, Petr, Kamba, Stanislav, Sechovsky, Vladimir, Pospisil, Jiri
Publikováno v:
Journal of Physical Chemistry Letters, 2022,13, 11095
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 structural transition at TS1 = 79 K is accompanied by a large splitting of polar phonon modes.
Externí odkaz:
http://arxiv.org/abs/2209.03725