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Regular version of the site

Article

Examination of cryogenic filters for a multistage RF filltering system required for ultralow temperature nanoelectronic experiments

Journal of Physics: Conference Series. 2017. Vol. 969. No. 012086. P. 1-7.
Zavialov V. V., Chernyaev S. A., Shein K. V., Shukaleva A. G., Arutyunov K.

Cryo- lters 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 lters cooled
down to 4.2K in the 10 Hz-500MHz frequency range. In particular, we tested the
home-made permalloy-core RL lters, the MurataTMChip Ferrite Bead lter, and the
ToshibaTMAmobeadsTMcores. We use the high-frequency generalization of four-terminal sensing
method to account for the wiring retardation e ects, which are important when working with
ultralow temperature system