Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
MA: Fachverband Magnetismus
MA 34: Molecular Magnetism
MA 34.8: Vortrag
Donnerstag, 20. März 2025, 11:30–11:45, H18
Tuning spin-injection into metallacrown/thin-metal film systems — •David Anthofer1, Ashish Moharana1, Dominik Laible2, Fabian Kammerbauer1, Alexander Hagenow2, Eva Rentschler2, and Angela Wittmann1 — 1Institut für Physik, Johannes-Gutenberg Universität Mainz, Deutschland — 2Department Chemie, Johannes-Gutenberg Universität Mainz, Deutschland
Single-molecular magnets (SMMs) have recently gained significant interest due to their ability to retain magnetic information at the molecular level, offering potential applications in high-density data storage devices. A crucial challenge hindering their application in technology is the integration with thin-film devices. To tackle this challenge, we explore the spin-injection efficiency in hybrid molecule/non-magnetic metal thin film heterostructures to understand the impact of hybridization. For this, we utilize molecules based on the metallacrown system, chosen for their unique combination of synthetic versatility and structural stability. We inject a pure spin current at ferromagnetic resonance into the hybrid interface, allowing us to measure the magnetic damping of the system. We observe a notable increase in damping after adsorption of Dysprosium-based metallacrown SMMs. In contrast, no change in damping was observed after deposition of Copper-based metallacrowns indicating the significance of molecular composition on the spin-injection efficiency at the hybrid interface. Further optimization of the ferro- and nonmagnetic metal layer thicknesses proves to affect the observed change in damping, paving the path toward a sensitive framework to study hybridization at the molecule/metal interface.
Keywords: Ferromagnetic resonance; Single-molecular magnets; Metallacrown molecules