Development of Cryogen-Free Scanning SQUID on Tip Microscope platform for Imaging from Near-Zero to Multi-Tesla Fields.

ORAL

Abstract

We present the development of a cryogen-free scanning SQUID-on-tip (SOT) microscope platform designed for nanoscale magnetic imaging across an exceptionally broad magnetic field range, from near-zero to multi-tesla, and a temperature range of 300 mK to 9 K. The system incorporates an ultra-low-vibration closed-cycle cryostat with a 300 mK base temperature, enabling extended, stable operation without the use of liquid cryogens. The microscope also supports exchange-gas environments for controlled thermal studies of samples. This platform achieves high spatial and magnetic sensitivity across both low- and high-field regimes, providing a versatile tool for investigating a wide range of superconducting, magnetic, and quantum materials

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Presenters

  • Aritra Mazumder

    • University of Colorado, Boulder

Authors

  • Aritra Mazumder

    • University of Colorado, Boulder

  • Lincoln Doney

    • University of Colorado Boulder

  • Matthew A Crane

    • University of Colorado Denver

  • David N Mann

    • University of Colorado Denver
    • University of Colorado, Denver

  • Dennis D Pradhan

    • University of Colorado, Denver

  • Neil D Quines

    • University of Colorado Denver
    • University of Colorado, Denver

  • Lucas W Schaab

    • University of Colorado Denver

  • Bruce A Hines

    • University of Colorado Denver

  • Justin D Griffith

    • University of Colorado, Boulder
    • University of Colorado Boulder

  • Martin E Huber

    • University of Colorado, Denver

  • Daniel S Dessau

    • University of Colorado, Boulder
    • University of Colorado Boulder