Title :
Laser annealing in exchanged-biased films with out-of-plane and in-plane magnetic anisotropy
Author :
Choi, S.D. ; Kim, S.W. ; Jin, D.H. ; Yun, D.K. ; Lee, M.S. ; Ahn, J.H. ; Joo, H.W. ; Lee, K.A. ; Lee, S.S. ; Hwang, D.G.
Author_Institution :
Dept. of Phys., Dankook Univ., Cheonan, South Korea
Abstract :
The local magnetization reversal of an exchange-biased in-plane FeMn/NiFe bilayers and out-of plane [Pd/Co]5/FeMn multilayers as a function of exposed region is investigated. The multilayer films are deposited using ion-beam and dc magnetron sputtering method. Laser annealing using a diode pumped solid state (Nd:YAG) laser is then utilized to locally reverse the unidirectional anisotropy in the films. The hysteresis loops for the exchange biased films are also analyzed by the magnetic optical Kerr effect and the extraordinary Hall effect.
Keywords :
Hall effect; Kerr magneto-optical effect; cobalt; exchange interactions (electron); ferromagnetic materials; iron alloys; laser beam annealing; magnetic anisotropy; magnetic hysteresis; magnetic multilayers; magnetic thin films; magnetisation reversal; manganese alloys; nickel alloys; palladium; solid lasers; sputtered coatings; FeMn-NiFe-Pd-Co; Hall effect; bilayers; dc magnetron sputtering; diode pumped solid state laser; exchanged-biased films; hysteresis loops; ion-beam sputtering; laser annealing; magnetic anisotropy; magnetic optical Kerr effect; magnetization reversal; multilayer films; unidirectional anisotropy; Annealing; Magnetic anisotropy; Magnetic films; Magnetic multilayers; Magnetization reversal; Optical films; Perpendicular magnetic anisotropy; Pump lasers; Solid lasers; Sputtering;
Conference_Titel :
Magnetics Conference, 2005. INTERMAG Asia 2005. Digests of the IEEE International
Print_ISBN :
0-7803-9009-1
DOI :
10.1109/INTMAG.2005.1464250
