Dzyaloshinskii-Moriya–type interaction and Lifshitz invariant in Rashba 2D electron gas systemsстатья
Статья опубликована в высокорейтинговом журнале
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Дата последнего поиска статьи во внешних источниках: 26 ноября 2014 г.
Аннотация:The origin of chiral magnetic structures in ultrathin films of magnetic metals is analyzed. It is shown that the Lifshitz-type invariant term in the macroscopic thermodynamic potential can be derived from the spin-orbit Rashba Hamiltonian in two-dimensional electron gas 2DEG). The former is the prerequisite for the existence of spin cycloids, skyrmions and other chiral phenomena observed in thin films. The estimation of the period of spin cycloid gives the value of an order of 10 nm typical for structures reported in the literature.