Relationship between Gilbert damping and magneto-crystalline anisotropy in a Ti-buffered Co/Ni multilayer system

• DOI: 10.1063/1.4813542
• Publication Date: 2013-07-09T22:20:43Z
• Authors: Hyon-Seok Song; Kyeong-Dong Lee; Jeong-Woo Sohn; See-Hun Yang; Stuart S. P. Parkin; Chun-Yeol You; Sung-Chul Shin
• Keywords: Magnetic damping; Magneto-optic Kerr effect; Lattice constant; Lattice (music)

The relationship between Gilbert damping and magneto-crystalline anisotropy is studied here using an all-optical method in a perpendicular Co/Ni multilayer system by varying the Ti-buffer thickness. As thickness increases, enhanced. time-resolved Kerr signal of each sample well described its own intrinsic constant wide range external magnetic field. Interestingly, we find that constants increase linearly from 0.021 to 0.036 when samples varies 2.4 3.4 Merg/cm3. Such linear implies spin-orbit interaction main source process through spin-lattice relaxation our system.