Examination of cryogenic filters for multistage RF filtering in ultralow temperature experiments

Cryo-filters are essential while studying electronic properties of nanoscale structures at very low temperatures. In this report we present the simple measuring methodology and experimental impedance characteristics of customized lumped filters cooled down to 4.2K in the 10 Hz-500 MHz frequency rang...

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Bibliographic Details
Published inJournal of physics. Conference series Vol. 969; no. 1; pp. 12086 - 12091
Main Authors Zavyalov, V V, Chernyaev, S A, Shein, K V, Shukaleva, A G, Arutyunov, K Yu
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.03.2018
Subjects
Ferrite beads
Ferrous alloys
Four point probe method
Frequency ranges
Low temperature
Magnetic alloys
Physics
Wiring
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Summary:Cryo-filters are essential while studying electronic properties of nanoscale structures at very low temperatures. In this report we present the simple measuring methodology and experimental impedance characteristics of customized lumped filters cooled down to 4.2K in the 10 Hz-500 MHz frequency range. In particular, we tested the home-made permalloy-core RL filters, the MurataTMChip Ferrite Bead filter, and the ToshibaTMAmobeadsTMcores. We use the high-frequency generalization of four-terminal sensing method to account for the wiring retardation effects, which are important when working with ultralow temperature systems.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/969/1/012086