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MA: Fachverband Magnetismus

MA 26: Spin Dynamics / Spin Torque IV

MA 26.1: Hauptvortrag

Donnerstag, 25. März 2010, 14:00–14:30, H10

Magnonics - Exploring spin waves on the nanoscale — •Dirk Grundler — Lehrstuhl für Physik funktionaler Schichtsysteme, Technische Universität München, Physik Department, James-Franck-Str. 1, 85747 Garching b. München, Germany

Collective spin excitations in ferromagnets have regained great interest in magnetism research. Recent observations such as spin-wave quantization, localizaton and interference in nanopatterned ferromagnets have stimulated further the field of magnonics where spin waves (magnons) are explored in order to carry and process information.[1] Here, magnonic waveguides and magnonic crystals, i.e. the magnetic counterpart of photonic crystals, are expected to offer intriguing perspectives for the transmission and manipulation of spin waves, respectively. However, the experimental realization is still in its infancy and challenging. We will discuss recent developments and all-electrical spin-wave spectroscopy on magnonic nanodevices based on nanowires as well as antidot lattices. We gratefully acknowledge collaborations and discussions with M. Becherer, B. Botters, G. Dürr, F. Giesen, G. Gubbiotti, D. Heitmann, M. Kostylev, V. Kruglyak, S. Neusser, J. Podbielski, D. Schmidt-Landsiedel, S. Tacchi, and J. Topp. The research leading to these results has received funding from the European Community's Seventh Framework Programme (FP7/2007-2013) under Grant Agreement n°228673, from SFB 668 and the German Excellence Cluster 'Nanosystems Initiative Munich'. [1] S. Neusser and D. Grundler, Advanced Materials 21, 2927 (2009); and references therein.