Title :
Local magnetization reversal of perpendicular exchange-biased multilayers by laser annealing
Author :
Choi, S.D. ; Joo, H.W. ; Lee, Kong Aik ; Lee, S.S. ; Hwang, Do Guwn
Author_Institution :
Dept. of Phys., Sangji Univ., Wonju
Abstract :
Partial magnetization reversal of perpendicular exchange biasing in [Pd/Colx5/FeMn multilayer with a perpendicular anisotropy using laser annealing was studied. The reversed hysteresis loop in the (Pd/Colx5/FeMn multilayer was shifted to opposite magnetic field as the laser power increases. The partial magnetization reversal of the laser-annealed multilayers was confirmed by the hysteresis loop, measured along the various positions from laser spot using MOKE. In the case of [Pd/Co]x2/Cu/[Pd/Co|x2/FelVln spin-valves Film, the reversal of magnetization was gradually increased as the illuminated region of laser annealing expands.
Keywords :
ferromagnetic materials; laser beam annealing; magnetic anisotropy; magnetic hysteresis; magnetic multilayers; magnetisation reversal; spin valves; Pd-Co-Cu-Pd-Co-FeMn; Pd-Co-Cu-Pd-Co-FeMn - Interface; Pd-Co-FeMn; Pd-Co-FeMn - Interface; laser annealing; local magnetization reversal; partial magnetization reversal; perpendicular anisotropy; perpendicular exchange biasing; perpendicular exchange-biased multilayer; reversed hysteresis loop; spin-valves film; Anisotropic magnetoresistance; Annealing; Fiber lasers; Laser theory; Magnetic films; Magnetic hysteresis; Magnetic multilayers; Magnetization reversal; Physics; Power lasers; [Co/Pd] multilayers; laser annealing; partial magnetization reversal; perpendicular exchange biasing;
Conference_Titel :
Nanotechnology Materials and Devices Conference, 2006. NMDC 2006. IEEE
Conference_Location :
Gyeongju
Print_ISBN :
978-1-4244-0540-4
Electronic_ISBN :
978-1-4244-0541-1
DOI :
10.1109/NMDC.2006.4388783
