Modular cryogenic piezoelectric scanner for scanning SQUID microscopy
Source abstract
Abstract
Scanning superconducting quantum interference device (SQUID) microscopy is a powerful tool to study a wide variety of magnetic phenomena including weak magnetism originating from interfaces or antiferromagnets. Many SQUID microscopies utilize piezoelectric “s-bender” designs which offer large scan areas but can be sensitive to vibrations. Here, we design a new cryogenic scanner based off modular sets of double piezoelectric bimorphs which have higher resonant frequencies than “s-bender” designs while maintaining a 160 × 160 μm2 scan area. We demonstrate scanning capabilities by imaging local magnetic flux and susceptibility of an antiferromagnetic EuTiO3 thin film. This design provides extremely sensitive magnetic measurements and is readily adaptable for applications in other scanning probe techniques.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Acoustic Wave Resonator Technologies · Ferroelectric and Piezoelectric Materials · Electronic and Structural Properties of Oxides
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Physics, University of Connecticut 1 , Storrs, Connecticut 06269,
School of Mechanical, Aerospace, and Manufacturing Engineering, University of Connecticut 2 , Storrs, Connecticut 06269,
Institute of Material Science, University of Connecticut 3 , Storrs, Connecticut 06269,
Department of Material Science & Engineering, University of Connecticut 4 , Storrs, Connecticut 06269,
Funding
Air Force Research Laboratory · National Science Foundation · University of Connecticut Quantum SEED Grant · University of Connecticut Quantum Regional Development Grant
References (39)
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