• DocumentCode
    47188
  • Title

    Optimization of Functional Parameters of Magnetoresistive Fe20Ni80/Fe50Mn50/Fe20Ni80 Films

  • Author

    Yuvchenko, A.A. ; Lepalovskij, V.N. ; Savin, P.A. ; Gorkovenko, A.N. ; Kulesh, N.A. ; Vas´kovskiy, V.O.

  • Author_Institution
    Dept. of Magn. & Magn. Nanomater., Ural Fed. Univ., Yekaterinburg, Russia
  • Volume
    51
  • Issue
    1
  • fYear
    2015
  • fDate
    Jan. 2015
  • Firstpage
    1
  • Lastpage
    4
  • Abstract
    In this paper, the effect of some technological and physical factors on properties of SiO2/Ta/Fe20Ni80/Fe50Mn50 and SiO2/Ta/Fe20Ni80/Fe50Mn50/Fe20Ni80/Ta films, having the anisotropic magnetoresistance (AMR) effect, was investigated. The purpose of this paper was to find the optimum conditions for realization of the peak magnetic biasing in thick (>30 nm) permalloy layers. Essential influence of the protective Ta layer on the achievement of the optimal combination of properties of multilayer AMR films with exchange coupling is shown. Dependences of the exchange bias field (Hex) and maximum derivation of resistance with respect to magnetic field (dR/dH)max on the thickness of functional permalloy layers are investigated. The preproduction prototypes of a sensor are produced and sensor transformation function is investigated.
  • Keywords
    Permalloy; enhanced magnetoresistance; exchange interactions (electron); iron alloys; magnetic multilayers; magnetic thin films; manganese alloys; nickel alloys; Fe20Ni80-Fe50Mn50-Fe20Ni80; anisotropic magnetoresistance effect; exchange bias field; exchange coupling; functional parameter; functional permalloy layer; magnetic biasing; magnetic field; magnetoresistive film; multilayer AMR films; physical factor; protective Ta layer; sensor transformation function; technological factor; thick permalloy layer; Annealing; Magnetic multilayers; Magnetoresistance; Manganese; Perpendicular magnetic anisotropy; Substrates; Anisotropic magnetoresistance (AMR); exchange bias; magnetic films; magnetic sensors;
  • fLanguage
    English
  • Journal_Title
    Magnetics, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9464
  • Type

    jour

  • DOI
    10.1109/TMAG.2014.2362817
  • Filename
    7029223
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=47188