Regensburg 2022 – wissenschaftliches Programm
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MA: Fachverband Magnetismus
MA 35: Poster 2
MA 35.58: Poster
Donnerstag, 8. September 2022, 16:00–18:00, P4
A Sacrificial Magnet System for Flux Dependent Surface Science Studies — •Danyang Liu1, Jens Oppliger1, Aleš Cahlík1, Catherine Witteveen1,2, Fabian O. von Rohr2, and Fabian Donat Natterer1 — 1Department of Physics, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland — 2Department of Quantum Matter Physics, University of Geneva, 24 Quai Ernest-Ansermet, CH-1211 Geneva, Switzerland
Here we describe the design and characterization of a NbFeB permanent magnet system that can be retrofitted to the sample holders of existing STM. Our design produces a magnetic field of up to 400 mT that is compatible with high temperature sample cleaning routines above the Curie point of the magnet frequently used in UHV experiments. We characterize the flux density using superconducting vortices in NbSe2 and BSCCO and demonstrate the life-cycle of the magnet from sample preparation to characterization. Our magnet is an accessible way to flux-dependent surface science, ranging from vortices in high-temperature superconductors to STM-enabled electron spin resonance.