Regensburg 2007 – wissenschaftliches Programm

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MA: Fachverband Magnetismus

MA 15: Poster:ThinFilms(1-33),Transp.(34-49),ExchBias(50-56),
Spindynamics(57-70),Micro-nanostr.Mat.(71-82),
Particles/Clust.(83-88), Mag.Imag./Surface(89-96),
Spinelectronics(97-109), Theory/Micromag.(110-116),
Spinstruct/Phasetr.(117-128),Magn.Mat.(129-139),
Aniso.+Measuring(140-145), MolMag.(146-152),
MSMA(153-156)

MA 15.82: Poster

Dienstag, 27. März 2007, 15:00–19:00, Poster A

Magnetic multilayer films on template-assisted particle arrays — •Judith Moser, Vojko Kunej, Denis Makarov, Günther Schatz, Elke Scheer, and Manfred Albrecht — University of Konstanz, Department of Physics, D-78457 Konstanz, Germany

We present a technique of template-assisted self-assembly of polystyrene particles forming one-dimensional arrangements induced by linear groove structures which were fabricated by e-beam lithography and reactive ion etching. After the particle assembly magnetic Co/Pt multilayer films with perpendicular magnetic anisotropy are grown onto the particle chain. The so-formed magnetic caps are single-domain and magnetically exchange decoupled [1] but provide a metal contact between the particles. The magnetic domain configuration along the particle chain is investigated by magnetic force microscopy and compared to micromagnetic simulations. First results on magneto-resistance along the chain structure and on comparable two-dimensional particle arrays are presented and discussed.

This project is funded by the DFG through the Emmy Noether program at the University of Konstanz.

[1] M. Albrecht, G. Hu, I. L. Guhr, T. C. Ulbrich, J. Boneberg, P. Leiderer, and G. Schatz, Nature Materials 4, 203 (2005).