2016/01/10 by Kim, Nam-Hui, Nam-Hui Kim, Jinyong Jung +16 · 3 citations
Chemistry · Physics and Astronomy · #Anisotropy #Anisotropy energy #Brillouin zone #Chemistry #Condensed matter physics #Coupling (piping) #Magnetic anisotropy #Magnetic field #Magnetic properties of thin films #Magnetization #Materials science #Optics #Perpendicular #Physics #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena #Saturation (graph theory) #Sign (mathematics) #Spin (aerodynamics) #Spin pumping #Spin–orbit interaction #Theoretical and Computational Physics #Thermodynamics #Topological Materials and Phenomena #cond-mat.mtrl-sci
paper · pdf · doi:10.1063/1.4945685
arxiv created 2016/03/16 · openalex publication_date 2016/04/04 · arxiv updated 2016/05/04 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/03
The interfacial Dzyaloshinskii-Moriya interaction (iDMI), surface anisotropy energy, and spin pumping at the Ir/Co interface are experimentally investigated by performing Brillouin light scattering. Contrary to previous reports, we suggest that the sign of the iDMI at the Ir/Co interface is the same as in the case of the Pt/Co interface. We also find that the magnitude of the iDMI energy density is relatively smaller than in the case of the Pt/Co interface, despite the large strong spin-orbit coupling (SOC) of Ir. The saturation magnetization and the perpendicular magnetic anisotropy (PMA) energy are significantly improved due to a strong SOC. Our findings suggest that an SOC in an Ir/Co system behaves in different ways for iDMI and PMA. Finally, we determine the spin pumping effect at the Ir/Co interface, and it increases the Gilbert damping constant from 0.012 to 0.024 for 1.5 nm-thick Co.