A 10 mK hermetic cell for eliminating parasitic heating in cryogen-free dilution refrigerators
| Autor: | Eddy Collin, Sumit Kumar, David Schmoranzer, Xiao Liu, Andrew Fefferman, Sébastien Triqueneaux, T. H. Metcalf, Glenn G. Jernigan |
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| Přispěvatelé: | Ultra-basses températures (UBT), Institut Néel (NEEL), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), Charles University [Prague] (CU), Cryogénie (Cryo), Naval Research Laboratory (NRL) |
| Rok vydání: | 2020 |
| Předmět: |
Physics - Instrumentation and Detectors
Photon Materials science Physics::Instrumentation and Detectors FOS: Physical sciences General Physics and Astronomy chemistry.chemical_element Applied Physics (physics.app-ph) Residual 01 natural sciences 7. Clean energy Shield 0103 physical sciences General Materials Science Dilution refrigerator 010306 general physics Mixing chamber Helium 010302 applied physics Superconductivity Physics - Applied Physics Instrumentation and Detectors (physics.ins-det) Dilution chemistry [PHYS.COND.CM-GEN]Physics [physics]/Condensed Matter [cond-mat]/Other [cond-mat.other] Atomic physics |
| Zdroj: | Cryogenics Cryogenics, Elsevier, 2020, 110, pp.103162. ⟨10.1016/j.cryogenics.2020.103162⟩ |
| ISSN: | 0011-2275 |
| DOI: | 10.1016/j.cryogenics.2020.103162 |
| Popis: | International audience; Cryogen-free dilution refrigerators generally simplify low temperature research but some types of samples, including superconducting qubits and other nanoelectronic devices, are affected by environmental heat sources such as stray photons or residual helium. We present the design and performance of a hermetic cell installed on the mixing chamber plate of a cryogen-free dilution refrigerator. The performance was quantified by measuring the dependence of the resonance frequency of a mechanical oscillator installed inside the cell on the mixing chamber temperature down to 10 mK. We found the expected logarithmic temperature dependence of the resonance frequency down to the lowest temperatures, demonstrating that the efficiency of the hermetic shield is significantly better than that of a simpler shield with no visible gaps. |
| Databáze: | OpenAIRE |
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