Zobrazeno 1 - 10
of 194
pro vyhledávání: '"Udvardi, L"'
Autor:
Tóth, B., Farkas, D. G., Amelin, K., Rõõm, T., Nagel, U., Udvardi, L., Szunyogh, L., Rózsa, L., Ito, T., Bordács, S.
Although BiFeO$_3$ is one of the most studied multiferroic materials, recent magnetization and neutron scattering studies have revealed a new magnetic phase in this compound - the transverse conical phase. To study the collective spin excitations of
Externí odkaz:
http://arxiv.org/abs/2402.01417
Akademický článek
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Publikováno v:
IEEE Transactions on Magnetics volume 50 issue 11 (2014) 1300704
The finite-temperature magnetism of a monolayer on a bcc (110) surface was examined using a model Hamiltonian containing ferromagnetic or antiferromagnetic exchange interactions, Dzyaloshinsky-Moriya interactions and easy-axis on-site anisotropy. We
Externí odkaz:
http://arxiv.org/abs/1412.3591
We perform an extensive study of the spin-configurations in a PdFe bilayer on Ir(111) in terms of ab initio and spin-model calculations. We use the spin-cluster expansion technique to obtain spin model parameters, and solve the Landau-Lifshitz-Gilber
Externí odkaz:
http://arxiv.org/abs/1407.7718
Publikováno v:
J. Phys.: Condens. Matter 26 (2014) 216003
A method is proposed to study the finite-temperature behaviour of small magnetic clusters based on solving the stochastic Landau-Lifshitz-Gilbert equations, where the effective magnetic field is calculated directly during the solution of the dynamica
Externí odkaz:
http://arxiv.org/abs/1401.7885
Publikováno v:
J. Phys.: Condens. Matter 25 (2013) 506002
A spin model including magnetic anisotropy terms and Dzyaloshinsky-Moriya interactions is studied for the case of a ferromagnetic monolayer with C2v symmetry like Fe/W(110). Using the quasiclassical stochastic Landau-Lifshitz-Gilbert equations, the m
Externí odkaz:
http://arxiv.org/abs/1308.2082
We perform fully relativistic first principles calculations of the exchange interactions and the magnetocrystalline anisotropy energy (MAE) in an Fe/FePt/Fe sandwich system in order to elucidate how the presence of Fe/FePt (soft/hard magnetic) interf
Externí odkaz:
http://arxiv.org/abs/1306.3642
The exchange bias effect in compensated IrMn3/Co(111) system is studied using multiscale modeling from "ab initio" to atomistic calculations. We evaluate numerically the out-of-plane hysteresis loops of the bi-layer for different thickness of the fer
Externí odkaz:
http://arxiv.org/abs/1305.2308
In order to derive tensorial exchange interactions and local magnetic anisotropies in itinerant magnetic systems, an approach combining the Spin-Cluster Expansion with the Relativistic Disordered Local Moment scheme is introduced. The theoretical bac
Externí odkaz:
http://arxiv.org/abs/1010.2375
Autor:
Udvardi, L.
MCSCF calculations are performed in order to determine the exchange coupling between the 2p electrons of the N atom and the LUMOs of the fullerene cage in the case of mono- and tri-anions of N@C60. The exchange coupling resulted by our calculations i
Externí odkaz:
http://arxiv.org/abs/0909.3939