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Fletta eftir efnisorði "Heisenberg model"

Fletta eftir efnisorði "Heisenberg model"

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    Atomistic spin simulations of electric-field-assisted nucleation and annihilation of magnetic skyrmions in Pd/Fe/Ir(111) 
    Goerzen, Moritz Alexander; von Malottki, Stephan; Kwiatkowski, Grzegorz; Bessarab, Pavel; Heinze, Stefan (American Physical Society (APS), 2022-06-27)
    We provide a theoretical background for electric-field-assisted thermally activated writing and deleting of magnetic skyrmions in ultrathin transition-metal films. We apply an atomistic spin model, which includes the exchange interaction, the ...
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    Effects of interlayer exchange on collapse mechanisms and stability of magnetic skyrmions 
    Schrautzer, Hendrik; von Malottki, Stephan; Heinze, Stefan; Bessarab, Pavel (American Physical Society (APS), 2022-01-11)
    Theoretical calculations of thermally activated decay of skyrmions in systems comprising several magnetic monolayers are presented, with a special focus on bilayer systems. Mechanisms of skyrmion collapse are identified and corresponding energy barriers ...
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    Theory of noncollinear interactions beyond Heisenberg exchange: Applications to bcc Fe 
    Szilva, A.; Thonig, D.; Bessarab, Pavel; Kvashnin, Y. O.; Rodrigues, D. C. M.; Cardias, R.; Pereiro, M.; Nordström, L.; Bergman, A.; Klautau, A. B.; Eriksson, O. (American Physical Society (APS), 2017-10-10)
    We show for a simple noncollinear configuration of the atomistic spins (in particular, where one spin is rotated by a finite angle in a ferromagnetic background) that the pairwise energy variation computed in terms of multiple-scattering formalism ...