Regensburg 2019 – wissenschaftliches Programm
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MA: Fachverband Magnetismus
MA 15: Magnetism Poster A
MA 15.35: Poster
Dienstag, 2. April 2019, 10:00–13:00, Poster E
Characterization of individual YIG/Pt nano-structures via Spin Transfer Torque-FMR — •Steffen Steinert1, Björn Heinz1,2, Thomas Brächer1, Michael Schneider1, Philipp Pirro1, Bert Lägel1, Anna M. Friedel1, David Breitbach1, Carsten Dubs3, Burkard Hillebrands1, and Andrii V. Chumak1 — 1Fachbereich Physik and Landesforschungszentrum OPTIMAS, Technische Universität Kaiserslautern, 67663 Kaiserslautern, Germany — 2Graduate School Materials Science in Mainz, Staudingerweg 9, 55128 Mainz, Germany — 3INNOVENT e.V., Technologieentwicklung Jena, 07745 Jena, Germany
Yttrium iron garnet (YIG) is a unique material with outstanding magnetic properties such as the lowest known spin-wave damping. It is therefore well suited for the investigation of fundamental spin-wave dynamics and a promising candidate for the application in spin-wave based circuits and logic devices. In this work, we investigate spin-wave conduits fabricated from a thin YIG(27nm)/Pt(10nm) bi-layer system with varying width ranging from microns down to about 100nm. The investigation of the magnetic properties, e.g. the ferromagnetic resonance linewidth (FMR), in dependency of the width of the structure is carried out by means of spin transfer torque ferromagnetic resonance spectroscopy (ST-FMR). In addition, the impact of an applied dc-current on the linewidth is examined. This research has been supported by ERC Starting Grant 678309 MagnonCircuits and DFG Grant DU 1427/2-1.