Related Experiment Video
Updated: Dec 24, 2025

Optimizing Magnetic Force Microscopy Resolution and Sensitivity to Visualize Nanoscale Magnetic Domains
Published on: July 20, 2022
A scalable high-performance magnetic shield for very long baseline atom interferometry
1Leibniz Universität Hannover, Institut für Quantenoptik, Welfengarten 1, 30167 Hannover, Germany.
Abstract:
We report on the design, construction, and characterization of a 10 m-long high-performance magnetic shield for very long baseline atom interferometry. We achieve residual fields below 4 nT and longitudinal inhomogeneities below 2.5 nT/m over 8 m along the longitudinal direction. Our modular design can be extended to longer baselines without compromising the shielding performance. Such a setup constrains biases associated with magnetic field gradients to the sub-pm/s2 level in atomic matterwave accelerometry with rubidium atoms and paves the way toward tests of the universality of free fall with atomic test masses beyond the 10-13 level.
Related Concept Videos
Diamagnetic Shielding of Nuclei: Local Diamagnetic Current
Mass Analyzers: Overview
Mass Analyzers: Common Types
Atomic Force Microscopy
The AFM Probe
The probe is regarded as the heart of any AFM setup and comprises the...
NMR Spectrometers: Resolution and Error Correction
Atomic Nuclei: Magnetic Resonance

