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MA: Fachverband Magnetismus
MA 57: Posters Magnetism II
MA 57.50: Poster
Donnerstag, 19. März 2020, 15:00–18:00, P3
Investigation of nanomagnetic phenomena employing co-resonant coupled cantilever sensors — •Maneesha Sharma1, Qifeng Pan1,3, Bernd Büchner1,2, and Thomas Mühl1 — 1Leibniz-Institut für Festkörper- und Werkstoffforschung IFW Dresden, Dresden, Germany — 2Institut für Festkörperphysik, Technische Universität Dresden, Dresden, Germany — 3Institut für Luftfahrtantriebe, Universität Stuttgart, Stuttgart, Germany
Cantilever magnetometry is one of the most sensitive techniques used for the study of magnetic properties of small particles. [1] This approach allows to study magnetic moment, anisotropy and switching behavior of single particles and nanowires. We use the co-resonant concept for enhancing the sensitivity of dynamic mode cantilever magnetometry. The coupled modes can be easily read out at the microcantilever. [2]
Magnetization reversal is an important process in the study of single domain particles. Quasi periodic magnetization reversal can be induced by torsional oscillations in static magnetic fields. [3] We present a detailed numerical analysis how quasi-instantaneous events like magnetization reversal in a tiny sample attached to the nano-cantilever affect the transient oscillation of both the micro- and the nano- cantilevers of a coupled system. Furthermore, we discuss the applicability of the spring mass model for coupled cantilever systems and energy transfer mechanisms. Also, we present a novel V-shaped design of CNT based nano-cantilever.