Zobrazeno 1 - 10
of 139
pro vyhledávání: '"Uzdin, V."'
Topological protection of chiral magnetic structures is investigated by taking a two-dimensional magnetic skyrmion as an example. The skyrmion lifetime is calculated based on harmonic transition state theory for a discrete lattice model using various
Externí odkaz:
http://arxiv.org/abs/2111.12014
Autor:
Lobanov, I. S., Uzdin, V. M.
Publikováno v:
Computer Physics Communications, Volume 269, December 2021, page 108136
A new method for the numerical computation of the lifetimes of magnetic states within harmonic transition state theory (HTST) has been developed. In the simplest case, the system is described by a Heisenberg-like Hamiltonian with short-range interact
Externí odkaz:
http://arxiv.org/abs/2008.06754
Publikováno v:
Phys. Rev. B 102, 134430 (2020)
The lifetime of antiskyrmions at room temperature in a Mn-Pt-Sn tetragonal Heusler material has been calculated using an atomic scale representation including nearly a million spins. The evaluation of the pre-exponential factor in the Arrhenius rate
Externí odkaz:
http://arxiv.org/abs/1906.06383
Autor:
Denisov, K. S., Rozhansky, I. V., Potkina, M. N., Lobanov, I. S., Lahderanta, E., Uzdin, V. M.
Publikováno v:
Phys. Rev. B 98, 214407 (2018)
We consider topological Hall effect (THE) in thin ferromagnetic films due to electron scattering on magnetic skyrmions in the presence of the relatively strong external magnetic field. We account for the effect of the magnetic field on a skyrmion str
Externí odkaz:
http://arxiv.org/abs/1803.06124
Autor:
Bessarab, P. F., Müller, G. P., Lobanov, I. S., Rybakov, F. N., Kiselev, N. S., Jónsson, H., Uzdin, V. M., Blügel, S., Bergqvist, L., Delin, A.
The skyrmion racetrack is a promising concept for future information technology. There, binary bits are carried by nanoscale spin swirls -- skyrmions -- driven along magnetic strips. Stability of the skyrmions is a critical issue for the realization
Externí odkaz:
http://arxiv.org/abs/1706.07173
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.
Publikováno v:
Phys. Rev. E 93, 042708 (2016)
The multidimensional energy surface of a cholesteric liquid crystal in a planar cell is investigated as a function of spherical coordinates determining the director orientation. Minima on the energy surface correspond to the stable states with partic
Externí odkaz:
http://arxiv.org/abs/1512.01974
The temperature dependence of the response of a magnetic system to an applied field can be understood qualitatively by considering variations in the energy surface characterizing the system and estimated quantitatively with rate theory. In the system
Externí odkaz:
http://arxiv.org/abs/1512.01962
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.
The magnetism of the Fe/Cr/Sn/Cr multilayers was studied by first-principles functional theory. The calculations by LAPW and SKKR methods showed that two solutions exist in the $Fe_9/Cr_{14}/Sn/Cr_2$ system. One of them is originated from the antifer
Externí odkaz:
http://arxiv.org/abs/cond-mat/0411602