Magnetic force microscopy of recording heads

GP Heydon, WM Rainforth, MRJ Gibbs, HA Davies, JEL Bishop, JW Tucker, S Huo, G Pan, DJ Mapps, WW Clegg

Research output: Contribution to journalConference proceedings published in a journalpeer-review

Abstract

Imaging the magnetic domain structure of potential recording devices is necessary for the development of new products. Here we have used amorphous MFM tips to image the domain structure in a thin film etched to mimic a prototype recording head. Classic closure domain structures adjacent to the gaps, cut by focused ion beam milling, have been observed. Moreover a strain induced closure (SIC) domain pattern of pinned walls along the device edge, a result of imprecise ion milling in the photolithographic process, is present. For comparison, commercial crystalline CoCr MFM tips have also been used to image the thin film sample.
Original languageEnglish
Pages (from-to)331-334
Number of pages0
JournalDefault journal
Volume0
Issue number161
Publication statusPublished - 1999
EventElectron Microscopy and Analysis 1999 -
Duration: 1 Jan 1999 → …

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