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.

References in corpus (5)

• Colossal Magnetoresistance without Mixed Valence in a Layered Phosphide Crystal
• Scanning SQUID characterization of extremely overdoped $L{a}_{2-x}S{r}_{x}Cu{O}_4$
• Determining the vibrations between sensor and sample in SQUID microscopy
• Local imaging of high mobility two-dimensional electron systems with virtual scanning tunneling microscopy
• Local imaging of diamagnetism in proximity coupled niobium nano-island arrays on gold thin films

Cited by in corpus (1)

• Characterization of two fast-turnaround dry dilution refrigerators for scanning probe microscopy