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Unformatted text preview: e.
If the FeMn (Antiferro) layer is missing, both ferromagnetic layers will always spin in the same direction.
And, there will be no high or low resistance states.
Reference : http://www.research.ibm.com/research/demos/gmr/index.html (check the flash for how
GMR read-head working) 2.b GMR : Major differences are : Two ferromagnetic and spacer are all conductive materials. Current flows
parallel to layers. The spin orientation (either antiparallel or parallel) determines the scattering effects
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- Fall '13