Reduction of a coercive field without substantial current shunt by an additional CoFeB layer in GMR spin valve

Abstract

The effects of an additional CoFeB layer to a CoFe free layer is investigated in a GMR spin valve. The GMR behavior as a function of t/sub f/ for the sample with and without the additional layer shows a similar tendency after thermal annealing at T = 275/spl deg/C. The addition of CoFeB layer to the CoFe free layer seems to suppress the substantial current… (More)

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