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dc.contributor.authorAllen, Portia
dc.contributor.authorBlagg, Kirsten
dc.contributor.authorSingh, Meenakshi
dc.date2021
dc.date.accessioned2023-11-21T23:42:46Z
dc.date.available2023-11-21T23:42:46Z
dc.identifier.urihttps://hdl.handle.net/11124/178559
dc.identifier.urihttps://doi.org/10.25676/11124/178559
dc.description.abstractThermal conductivity measurement techniques are extremely well established at room temperature, but become more challenging at cryogenic temperatures. The development of a dedicated thin film measurement platform for sub-Kelvin temperatures is explored here. Delicately suspended Si-N platforms ensure thermal isolation of the sample, while lithographically patterned Joule heaters provide a controllable temperature gradient across the platforms. A carbon-platinum (C-Pt) composite, fabricated using focused ion beam (FIB) assisted deposition, was patterned on the platforms as a local, resistive thermometer. These C-Pt thermometers are highly sensitive below 1K, and comparable to commercially available cryogenic thermometers. While suspended platforms have been used for thermal conductivity measurements before, the integration of highly sensitive, locally deposited cryogenic thermometers allows for more precise measurements over a wider temperature range.
dc.format.mediumarticles
dc.languageEnglish
dc.language.isoeng
dc.publisherColorado School of Mines. Arthur Lakes Library
dc.relation.ispartofReuleaux 2021
dc.rightsCreative Commons CC-BY License or the Creative Commons CC-BY-NC License.
dc.subjectthermal conductivity
dc.subjectcryogenic
dc.subjectthin film
dc.titleExperimental platform for thermal conductivity measurements
dc.typeText
dc.publisher.originalColorado School of Mines. Reuleaux Undergraduate Research Magazine


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