Method for cooling nanostructures to microkelvin temperatures

Clark, A. C.; Schwarzwälder, K. K.; Bandi, T.; Maradan, D.; Zumbühl, D. M.
October 2010
Review of Scientific Instruments;Oct2010, Vol. 81 Issue 10, p103904
Academic Journal
We propose a new scheme aimed at cooling nanostructures to microkelvin temperature based on the well established technique of adiabatic nuclear demagnetization: we attach each device measurement lead to an individual nuclear refrigerator, allowing efficient thermal contact to a microkelvin bath. On a prototype consisting of a parallel network of nuclear refrigerators, temperatures of ∼1 mK simultaneously on ten measurement leads have been reached upon demagnetization, thus completing the first steps toward ultracold nanostructures.


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