Reference materials science and engineering an

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Unformatted text preview: ity. Reference Materials science and engineering an introduction, 6thedition, William D. Callister, Jr 2.a FeMn : AntiFerro CoFe : Ferro (pinned) Cu : Spacer CoFe : Ferro (free) The above figure is the standard profile picture of a GMR spin-valve, normally used as the read-head of hard drive. The top antiferromagnetic plays a role in pinning the first ferromagnetic without the influence of external magnetic field. Therefore, the spin of top ferromagnetic is determined by the antiferromagnetic laye...
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