Dresden 2006 – wissenschaftliches Programm
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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 20.35: Poster
Dienstag, 28. März 2006, 15:15–19:15, P1
Domain structure of thin magnetic films with high perpendicular anisotropy — •Jens Brandenburg, Volker Neu, and Ludwig Schulz — IFW Dresden, Institut für Metallische Werkstoffe, PF 270116, D-01171 Dresden
To examine the influence of magnetic anisotropy and strayfield energy onto domain formation, the domain structure of thin Co based films with high perpendicular anisotropy and varying thickness was investigated using magnetic force microscopy (MFM). These films were prepared in a thickness range from 10 to 100 nm by physical vapour deposition (PVD). They were deposited either directly onto Al2O3 single crystal substrates or with an intermediate Ruthenium (Ru) buffer layer. The influence of the growth conditions (temperature, substrate orientation, buffer layer) onto the texture and as a consequence onto the magnetic properties of the sample was studied by x-ray diffractometry (XRD), pole-figure measurements and vibrating sample magnetometry (VSM). The dependence of the observed domain width from the thickness of the film is compared with the existing models for the domain structure for extended films.