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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Seidel, R. de Haas, O. Schaefer, R. Schultz, L. Ruehrig, M. Wecker, J. |
| Copyright Year | 1965 |
| Abstract | The magnetic microstructure and magnetization processes of sputtered IrMn-NiFe exchange-biased films were studied by Kerr microscopy and magneto-optical magnetometry in a temperature range from room temperature to 200/spl deg/C. A ferromagnetic film in the exchange-biased state (as created by cooling a regular domain pattern or a saturated state from above the blocking temperature) is reversed in a patch-like way in applied magnetic fields, indicating inhomogeneities in the coupling. The domain processes are reversible far below the blocking temperature T/sub B/ and get increasingly irreversible within a range of some 10 K around T/sub B/. Magnetic anisotropies in the ferromagnetic layer, though clearly visible above the blocking temperature, have no significant influence on exchange bias. A granular frozen-in domain pattern is observed in as-deposited bilayers, indicating the presence of local exchange bias even without annealing. |
| Sponsorship | IEEE Magnetics Society |
| Starting Page | 2776 |
| Ending Page | 2778 |
| Page Count | 3 |
| File Size | 228833 |
| File Format | |
| ISSN | 00189464 |
| Volume Number | 38 |
| Issue Number | 5 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2002-09-01 |
| Publisher Place | U.S.A. |
| Access Restriction | One Nation One Subscription (ONOS) |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Temperature distribution Magnetic films Magnetic anisotropy Micromagnetics Magnetization processes Magnetic force microscopy Perpendicular magnetic anisotropy Magnetic domains Saturation magnetization Cooling |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering |
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