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MA: Fachverband Magnetismus

MA 13: Magnetic Materials II

MA 13.3: Talk

Tuesday, March 8, 2016, 10:00–10:15, H31

Magnetic small-angle neutron scattering on bulk metallic glasses — •Denis Mettus¹, Andreas Michels¹, Dirk Honecker², Rainer Birringer³, Michael Deckarm³, and Andreas Leibner³ — ¹University of Luxembourg, Luxembourg — ²Institut Laue-Langevin, Grenoble, France — ³Universität des Saarlandes, Saarbrücken, Germany

Bulk metallic glasses (BMG) are amorphous solids which are very well known for their excellent mechanical properties. In this contribution, we focus on their magnetic behavior and we discuss the influence of mechanical deformation on the magnetic microstructure as seen by magnetic-field-dependent small-angle neutron scattering (SANS). This technique allows one to investigate the spin distribution in the bulk of the material and on the nanometer length scale. We present and compare the results of unpolarized SANS on various BMG samples (as-cast, aged, deformed) and we analyze the SANS cross section in real space by computing the correlation function.