High-frequency filtering for low-temperature thermal transport studies in nanostructures

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dc.contributor.author Torgovkin, Andrii
dc.date.accessioned 2012-10-01T07:35:40Z
dc.date.available 2012-10-01T07:35:40Z
dc.date.issued 2012
dc.identifier.uri http://urn.fi/URN:NBN:fi:jyu-201210012549 en
dc.identifier.uri http://hdl.handle.net/123456789/38684
dc.description.abstract Filtering of external unwanted RF-noise and thermal noise generated at the high-temperature parts of the measuring circuit is essential for successful measurements of thermal transport of nanostructures at low temperatures. This is because of thermal decoupling of the systems, i.e. the extreme weakness of thermal conduction at sub-Kelvin temperatures, leading easily to overheating even with excess power in sub pW range. We have started to improve the noise filtering in our cryogenic dilution refrigerators, which can reach a base temperature of ~ 50 mK. The miniature low-pass filters were made from special RF sealing compound Eccosorb CR124, stainless steel powder of grain size 50 micrometers and a typical low-temperature epoxy (Stycast). Measured cut-off frequency is at 1 MHz, low enough to cut most of the radiated RF power.
dc.format.extent 64 s.
dc.language.iso eng
dc.rights This publication is copyrighted. You may download, display and print it for Your own personal use. Commercial use is prohibited. en
dc.rights Julkaisu on tekijänoikeussäännösten alainen. Teosta voi lukea ja tulostaa henkilökohtaista käyttöä varten. Käyttö kaupallisiin tarkoituksiin on kielletty. fi
dc.subject.other high frequency filtering
dc.subject.other eccosorb
dc.subject.other powder filter
dc.subject.other dilution refrigerator
dc.subject.other SINIS
dc.subject.other microfabrication
dc.title High-frequency filtering for low-temperature thermal transport studies in nanostructures
dc.type Book en
dc.identifier.urn URN:NBN:fi:jyu-201210012549
dc.subject.ysa nanorakenteet
dc.subject.ysa fysiikka
dc.type.dcmitype Text en
dc.type.ontasot Pro gradu fi
dc.type.ontasot Master’s thesis en
dc.contributor.tiedekunta Matemaattis-luonnontieteellinen tiedekunta fi
dc.contributor.tiedekunta Faculty of Mathematics and Science en
dc.contributor.laitos Fysiikan laitos fi
dc.contributor.laitos Department of Physics en
dc.contributor.yliopisto University of Jyväskylä en
dc.contributor.yliopisto Jyväskylän yliopisto fi
dc.contributor.oppiaine Physics
dc.date.updated 2012-10-01T07:35:41Z

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