Dresden 2006 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Downloads | Hilfe
MA: Magnetismus
MA 20: Poster: Films(1-36) Transp(37-56) Ex.Bias(57-67) Spindyn(68-80) Micromag(81-95) Particle(96-109) Imag.+Surface(110-113) Spinelectr(114-122) Theory+Micromag(123-131) Spinstr+Aniso(132-142) MagMat(143-156) Meas(157,158) MolMag+Kondo(159-162) Postdead(163-)
MA 20.89: Poster
Dienstag, 28. März 2006, 15:15–19:15, P1
Tailoring the domain structure in magnetic multilayers. — •Denis Korolkov1, Emmanuel Kentzinger1, Lutz Willner1, Ralf Lehmann2, Andre van der Hart2, and Thomas Brückel1 — 1Forschungszentrum Jülich GmbH, Institut für Festköperforschung, D-52425, Jülich — 2Forschungszentrum Jülich GmbH, Institut für Schichten und Grenzfläschen, D-52425, Jülich
Epitaxially grown Fe/Cr/Fe layered structures are known to exhibit the giant magnetoresistance effect. Magnetoresistance effects have attracted great interest due to their applications, for example, in magnetic random access memory. Due to the necessary miniaturization of such a device, the magnetic interaction between the neighbouring cells is becoming a more and more important parameter that has to be controlled [1].
Here we report on the preparation of lateral nanostructures on top of Fe/Cr multilayers. Self organization of diblock-copolymers with different ratios of molecular weights of the chains has been employed as No-dqbottom-upNo-dq technique [2]. Electron-beam lithography with ion-beam etching has been used as No-dqtop-downNo-dq approach. We could produce nanostructures with a periodicity smaller than 50 nm on a large surface area.
The nanostructures were made visible with the surface sensitive technique of atomic force microscopy (AFM).
For the depth-resolved investigation of the lateral structure we used grazing incidence small angle neutron scattering GISANS.
[1] N. Ziegenhagen, U. Rücker, E. Kentzinger, R. Lehmann, A. van der Hart, B. Toperverg, Th. Brückel Physica B 335 (2003) 50-53 [2] I. W. Hamley Nanotechnology 14 (2003) R39-R54