Magnetization Reversal Time for Ferromagnetic and Antiferromagnetic Chains in the Heisenberg Modelстатья
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Дата последнего поиска статьи во внешних источниках: 28 февраля 2020 г.
Аннотация:A new analytical method for study the magnetic properties of the finite-length single-atomic and biatomic chains in the framework of Heisenberg model with uniaxial magnetic anisotropy is proposed. The method allows to calculate the reversal time of the magnetization of ferromagnetic and antiferromagnetic chains. Three cases are considered: the spontaneous remagnetization, the remagnetization under the interaction with a scanning tunneling microscope, and the remagnetization in the external magnetic field. The method gives results which are in good agreement with the results of the kinetic Monte Carlo simulations. As the examples, two physical systems are considered: biatomic Fe chains on Cu2N/Cu(001) surface and biatomic Co chains on Pt(997) surface.