Title :
Magnetization Reversal of Disorder-Induced Ferromagnetic Regions in Fe60Al40 Thin Films
Author :
Tahir, N. ; Gieniusz, R. ; Maziewski, A. ; Bali, R. ; Kostylev, M.P. ; Wintz, S. ; Schultheiss, H. ; Facsko, S. ; Potzger, K. ; Lindner, J. ; Fassbender, J.
Author_Institution :
Fac. of Phys., Univ. of Bialystok, Bialystok, Poland
Abstract :
Magnetization processes were investigated by employing magnetometry and magnetic domain imaging using magnetooptical longitudinal and polar effects in Fe60Al40 films of 40 nm thickness. The films were initially chemically ordered and weakly ferromagnetic, and a large increase in the saturation magnetization was achieved through chemical disorder induced by Ne+-ion irradiation. Various sample geometries were investigated: 1) continuous film; 2) homogenously irradiated wire; and 3) magnetic stripe-patterned wire. Magnetization reversal and magnetic domains formed under the influence of the above sample geometries are reported.
Keywords :
aluminium alloys; ferromagnetic materials; ion beam effects; iron alloys; magnetic domains; magnetic thin films; magnetisation reversal; magneto-optical effects; metallic thin films; Fe60Al40; chemical disorder; disorder-induced ferromagnetic region; homogenously irradiated wire; ion irradiation; magnetic domain imaging; magnetic stripe-patterned wire; magnetization reversal; magnetometry; magnetooptical longitudinal effect; polar effect; saturation magnetization; size 40 nm; thin films; Magnetic domains; Magnetic hysteresis; Magnetic resonance imaging; Perpendicular magnetic anisotropy; Saturation magnetization; Wires; Ions irradiation effects; magnetic domains; magnetic nanostructures; magnetic patterning; magnetooptical magnetometry;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2014.2321564
