Berlin 2024 – wissenschaftliches Programm
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MA: Fachverband Magnetismus
MA 6: Molecular Magnetism
MA 6.6: Vortrag
Montag, 18. März 2024, 11:00–11:15, EB 301
Hybrid Single Molecule Magnet - Metal System Studied with Nitrogen Vacancy Relaxometry — •Julian Skolaut1, Zhewen Xu2, Laura van Schie2, Dominik Laible1, Andrea Morales3, Simon Josephy3, Ashish Moharana1, Eva Rentschler1, Christian Degen2, and Angela Wittmann1 — 1Johannes Gutenberg-University, Mainz, Germany — 2ETH, Zurich, Switzerland — 3QZabre, Zurich, Switzerland
The unceasing demand for data storage capacity continues to inspire research in the field of magnetism. Single molecule magnets (SMMs) represent a promising avenue for miniaturizing data storage units to nanometer scales.
However, integration of SMMs into devices commonly involves deposition on metal substrates, which poses many challenges. Among these, a critical concern is hybridization, which can severely alter an SMM’s magnetic properties to the point of complete quenching. Here, we aim to investigate these hybridization effects on SMMs for spintronics applications.
Our investigations employ relaxometry measurements facilitated by a scanning nitrogen vacancy magnetometry setup. In this, increased magnetic noise from the SMMs leads to a reduced lifetime of the nitrogen vacancy center, providing access to the SMM’s magnetic properties. We present first results of relaxometry measurements on metallacrown SMMs on gold surfaces.
Keywords: Single Molecule Magnets; Scanning Nitrogen Vacancy Magnetometry; Relaxometry; Hybridization