Magnetic properties of the finite-length biatomic chains in the framework of the single domain-wall approximation
作者： S. V. Kolesnikov , I. N. Kolesnikova
DOI: 10.1103/PHYSREVB.100.224424
关键词: Single domain 、 Condensed matter physics 、 Magnetic field 、 Magnetization 、 Ferromagnetism 、 Kinetic Monte Carlo 、 Magnetic anisotropy 、 Scanning tunneling microscope 、 Materials science 、 Heisenberg model
摘要: A simple analytical method for study the magnetic properties of finite-length biatomic chains in framework Heisenberg model with uniaxial anisotropy is proposed. The allows to estimate reversal time magnetization ferromagnetic and antiferromagnetic chains. Three cases are considered: spontaneous remagnetization, remagnetization under interaction a scanning tunneling microscope, external field. applicability limits discussed. Within its gives results which perfect agreement kinetic Monte Carlo simulations. As examples, two physical systems Fe on Cu2N/Cu(001) surface Co Pt(997) surface. presented incomparably less time-consuming than standard kMC simulations, especially low temperatures or long
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