Aufsatz in einer Fachzeitschrift
In-plane magnetic pattern separation in NiFe/NiO and Co/NiO exchange biased bilayers investigated by magnetic force microscopy
Details zur Publikation
Autor(inn)en: | Ehresmann, A.; Krug, I.; Kronenberger, A.; Ehlers, A.; Engel, D. |
Publikationsjahr: | 2004 |
Zeitschrift: | Journal of Magnetism and Magnetic Materials |
Seitenbereich: | 369-376 |
Jahrgang/Band : | 280 |
ISSN: | 0304-8853 |
URN / URL: |
Zusammenfassung, Abstract
Ion bombardment induced magnetic patterning (IBMP) was used to write in-plane magnetized micro and submicron patterns in exchange biased magnetic bilayers, where the magnetization directions of the adjacent patterns are antiparallel to each other in remanence. These magnetic patterns were investigated by non-contact magnetic force microscopy (MFM). It is shown that the recorded MFM images of the IBMP patterns in two exemplarily chosen standard layer systems (NiFe(4.8nm)/NiO(68nm) and Co(4.8nm)/NiO(68nm)) can be well described by a model within the point-dipole approximation for the tip magnetization. For 5 and 0.9µm wide bar patterns the domain wall widths between adjacent magnetically patterned areas were determined to a ≈ 1µm. The minimum magnetically stable pattern width was estimated to be 0.7µm in the standard system Co(4.8nm)/NiO(68nm).
Ion bombardment induced magnetic patterning (IBMP) was used to write in-plane magnetized micro and submicron patterns in exchange biased magnetic bilayers, where the magnetization directions of the adjacent patterns are antiparallel to each other in remanence. These magnetic patterns were investigated by non-contact magnetic force microscopy (MFM). It is shown that the recorded MFM images of the IBMP patterns in two exemplarily chosen standard layer systems (NiFe(4.8nm)/NiO(68nm) and Co(4.8nm)/NiO(68nm)) can be well described by a model within the point-dipole approximation for the tip magnetization. For 5 and 0.9µm wide bar patterns the domain wall widths between adjacent magnetically patterned areas were determined to a ≈ 1µm. The minimum magnetically stable pattern width was estimated to be 0.7µm in the standard system Co(4.8nm)/NiO(68nm).
