Disaccommodation in amorphous ferromagnets measured with pulse method

A new measurement system to obtain a proper value of disaccommodation intensity D was devised and applied to Metglas 2605SC and Fe5Co7Si15B10amporphous ribbons as received. The initial susceptibility χ, the stabilization field Hoand the effective domain wall thickness δ were obtained from analysis of minor hysteresis loops at room temperature. The effects of a tensile stress σ along the long axis of the ribbons on χ, Ho, D and δ were investigated. The inverse of susceptibility r and Hoincreased linearly with log t where t is the time after demagnetization δ was almost constant with t except at small σ. The disaccommodation intensity defined as D=Δχ/χ(t1) was much greater than reported previously and was enhanced by σ.