| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1803614 | Journal of Magnetism and Magnetic Materials | 2009 | 5 Pages |
Abstract
FePt thin layers have been epitaxied either on Pt(0 0 1) or on MgO(0 0 1) substrates, and magnetically characterized using extraordinary Hall effect magnetometry and magnetic force microscopy. The coercivity originates in both cases from the pinning of domain walls on structural defects. Whereas the coercivity increases with the FePt layer thickness in FePt/Pt samples, it decreases in FePt/MgO samples. This discrepancy is explained on the basis of structural observations, and of atomistic simulations of magnetic domain wall pinning.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
Thomas Jourdan, Jean-Philippe Attané, Frédéric Lançon, Cyrille Beigné, Laurent Vila, Alain Marty,