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arXiv · 2302.05766

Versatile Millikelvin Hybrid Cooling Platform for Superconductivity Research

Jacob Franklin·Joshua Bedard·Ilya Sochnikov
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Abstract

Closed cycle $He^{3}-He^{4}$ dilution cryostats became the platform of choice in quantum sciences in the era of helium shortage. However, in many experiments, the mechanical vibrations induced by the pulsed cryocoolers present a significant drawback reflected both in electronic and mechanical noises. Here, we present a hybrid dilution cryostat platform; we have automated a commercial closed-cycle system to operate on a cryocooler or on a liquid helium battery. We implemented a scanning SQUID microscope in the hybrid dilution refrigerator. In this work we show the design of the hybrid setup and how its operation eliminates vibration artefacts in magnetic imaging.

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Jacob Franklin, Joshua Bedard, Ilya Sochnikov. 2023-02-11. Versatile Millikelvin Hybrid Cooling Platform for Superconductivity Research. https://doi.org/10.1109/tasc.2023.3239581

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