Versatile Millikelvin Hybrid Cooling Platform for Superconductivity Research

Abstract

Closed cycle $H{e}^3-H{e}^4$ 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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Cited by in corpus (3)

• Characterization of two fast-turnaround dry dilution refrigerators for scanning probe microscopy
• Auxiliary-assisted energy distillation from quantum batteries
• Massive quantum superpositions using magneto-mechanics