S. Colis et al., Biquadratic coupling in Co/Ir multilayers and sandwiches deposited by ion beam sputtering (IBS), J MAGN MAGN, 226, 2001, pp. 1725-1727
We report on magnetic and transport properties of Co/Ir sandwiches and mult
ilayers prepared by ion beam sputtering (IBS). The maximum GMR and coupling
strength are about 2% and -0.55 erg/cm(2), respectively. This coupling is
found to be homogeneous and to have a biquadratic nature instead of the ant
iferromagnetic one, usually observed. (C) 2001 Elsevier Science B.V. All ri
ghts reserved.