Please use this identifier to cite or link to this item: https://doi.org/10.1109/20.706737
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dc.titleA novel method for reduction of the cross track profile asymmetry of mr head during self servo-writing
dc.contributor.authorLiu, B.
dc.contributor.authorHu, S.-B.
dc.contributor.authorChen, Q.-S.
dc.date.accessioned2014-11-28T06:49:41Z
dc.date.available2014-11-28T06:49:41Z
dc.date.issued1998
dc.identifier.citationLiu, B., Hu, S.-B., Chen, Q.-S. (1998). A novel method for reduction of the cross track profile asymmetry of mr head during self servo-writing. IEEE Transactions on Magnetics 34 (4 PART 1) : 1901-1903. ScholarBank@NUS Repository. https://doi.org/10.1109/20.706737
dc.identifier.issn00189464
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/112684
dc.description.abstractCross track profile is used to provide head positioning signal during self servo-writing process. A symmetric off-track profile is preferred in this case. The asymmetry of the cross track profile of SAL biased MR head is characterized in this work referring to the point at which the MR head is at the track center. Results indicate that the profile can be rather asymmetrical for some MR heads. Different MR heads correspond to different degrees of asymmetry. Different skew angles also exhibit different degrees of asymmetry, even for the same MR head. As a result, the positioning accuracy of a MR heiid during self servo-writing is affected. A novel method is presented in this work. Instead of keeping the bias current in a fixed direction, the new method uses bias current in both positive and negative directions for the readback of the positioning bursts. Results indicate that the new method can reduce both the asymmetry and the variation of the profile at different skew angles, and improve the uniqueness of the normalized cross track profile significantly. © 1998 IEEE.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1109/20.706737
dc.sourceScopus
dc.subjectAsymmetry
dc.subjectCross track profile
dc.subjectMr head
dc.subjectSelf servo-writing
dc.subjectSkew angle
dc.typeArticle
dc.contributor.departmentDATA STORAGE INSTITUTE
dc.description.doi10.1109/20.706737
dc.description.sourcetitleIEEE Transactions on Magnetics
dc.description.volume34
dc.description.issue4 PART 1
dc.description.page1901-1903
dc.description.codenIEMGA
dc.identifier.isiut000074852300347
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