Analysis of a dual magnetoresistive head

摘要: A proposed dual magnetoresistive (DMR) reproduce head, consisting of two identical, adjacent MR stripes separated by a nonmagnetic spacer and connected electrically in parallel, was shown to have potential very high density magnetic recording applications. The authors consider the micromagnetics this device derive approximate analytical expressions for expected signal output as function linear density. expression intrinsic sensitivity vs. recorded density, when including correction account energy traditionally neglected edge fringing fields, are be good agreement with more exact numerical results. same form equations is useful deriving, via reciprocity, analogous reasonably accurate results shielded head. >