Effect of Magnetic Coupling on the Optical Properties of Oxide Co Nanowires on Vicinal Pt Surfaces

Nowadays, modern scientific research has sparked a renewed interest to study the interaction of electromagnetic field (EM) with magnetic nanostructures and in particular nanophotonics spintronics. The current work is devoted an ab initio magneto-optical properties step-decorated oxide Co nanowires (1D oxides) on vicinal Pt surfaces. Theoretical calculations moments are based spin-polarized density-functional theory (DFT) including self-consistent treatment spin-orbit coupling. first-principles revealed effect coupling between cobalt spins refractivity extinction spectra these 1D oxides governed by atomic structure cobalt-oxygen within nanowire at step edge. emergence sharp pronounced peak spectral difference refractive indexes been observed ferromagnetic antiferromagnetic configurations nanowire. Anisotropy coefficient terahertz (THz) range was established for state contrast one.