Domain walls in Fe(001) bicrystals-thickness dependence and field-induced transitions
2007 (English)In: Journal of Magnetism and Magnetic Materials, ISSN 0304-8853, E-ISSN 1873-4766Article in journal (Refereed) Published
ABSTRACT: Magnetic domain walls (DW's) formed at the grain boundary (GB) of epitaxial bicrystal Fe(001) films, thickness t=50 and 70nm, were studied by magnetic force microscopy. The “as-grown” samples displayed DW's with different magnetic contrast profiles yielding a single peak for t=50nm and a double peak with a change of sign at the centre of the wall for t=70nm. For t=50nm the wall is characterised as an asymmetric Bloch wall. The double peak of the 70nm thick film transformed into a single peak characteristic for a charged wall, when a field of 30mT was applied along the GB. At remanence this domain wall relaxed to a regular Bloch wall divided into segments of alternating signs.
Article · Mar 2007 · Journal of Magnetism and Magnetic Materials
Place, publisher, year, edition, pages
Physical Sciences Engineering and Technology
IdentifiersURN: urn:nbn:se:uu:diva-284107OAI: oai:DiVA.org:uu-284107DiVA: diva2:919824