Journal of Magnetics

The Korean Magnetics Society (한국자기학회)
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GMR in Multilayers with an Alternating In-plane and Perpendicular Anisotropy

  • Stobiecki, F. (Institute of Molecular Physics Polish Academy of Sciences) ;
  • Szymanski, B. (Institute of Molecular Physics Polish Academy of Science) ;
  • Lucinski, T. (Institute of Molecular Physics Polish Academy of Science) ;
  • Dubowik, J. (Institute of Molecular Physics Polish Academy of Science) ;
  • Urbaniak, M. (Institute of Molecular Physics Polish Academy of Science) ;
  • Roll, K. (University Gh-Kasse) ;
  • Kim, J.B (q-Psi and Department of Physics, Hanyang University) ;
  • Kim, K.W (q-Psi, Hanyang University, and Dept. of Physics, Sunmoon University) ;
  • Lee, Y.P (q-Psi and Department of Physics, Hanyang University)
  • Published : 2004.06.01
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Abstract

The magnetic properties of sputtered ($Ni_{83}Fe_{17}/Au/Co/Au$) multilayers with various thicknesses of Au (0.5 {\leq} t_{Au} {\leq} 3 nm), Ni-Fe ($1{\leq}t_{Ni-Fe}{\leq}4nm$) and Co ($0.2{\leq}t_{co}{\leq}1.5nm$) layers were characterized. An alternating in-plane and out-of-plane anisotropy of the ferromagnetic layers was achieved for the structures ($t_{Au}{\geq}1.5nm$) showing a weak coupling between the Ni-Fe layers with an in-plane anisotropy and the Co layers ($0.3{\leq}t_Co{\leq}1.2nm$) with a perpendicular anisotropy. For such a structure, a detailed discussion on the GMR effect is presented, relating to the magnetization reversal from a mutually perpendicular magnetic configuration at the remanence to a parallel one at the saturation. An influence of the dense labyrinth domain structure on the magnetoresistance effect is also addressed.

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