Magnetic properties of (FeAu)n alloys
|Jerzy Jaworowicz 1,5, Andrzej Maziewski 1, Iosif Sveklo 1, Maria Tekielak 1, Vitalii Zablotskii 1,2, Tomasz Ślęzak 3, Nika Spiridis 4, Józef Korecki 3|
1. University of Białystok, Institute of Experimental Physics, Lipowa 41, Białystok 15-424, Poland
Magnetic domain structures of FeAu superlattices are studied by experiment and modelling. The domain period, magnetic hysteresis loops and magnetic susceptibility were measured for a wide range of the film thickness, 3- 50 monolayers. Domain structures were observed by utilizing a magnetooptical installation based on the Kerr effect (MOKE) and magnetic force microscope (MFM). Typical MFM images of domain structures are shown in Fig.1. It is found that the zero-field domain period is inversely proportional to the saturation field. The thickness dependence of the domain period is well described by the classical domain models using the modified relationships for the domain wall energy density .
Fig1. MFM domain image for the 30 monolayers FeAu.
 M. Kisielewski, A. Maziewski, T. Polyakova, and V. Zablotskii. Phys. Rev. B 69, 184419 (2004).
Presentation: Poster at E-MRS Fall Meeting 2007, Acta Materialia Gold Medal Workshop, by Jerzy Jaworowicz
See On-line Journal of E-MRS Fall Meeting 2007
Submitted: 2007-05-21 16:34 Revised: 2009-06-07 00:44