Abstract
We present a 3ω method for simultaneously measuring the specific heat and thermal conductivity of a rod- or filament-like specimen using a way similar to a four-probe resistance measurement. The specimen in this method needs to be electrically conductive and with a temperature-dependent resistance, for acting both as a heater to create a temperature fluctuation and as a sensor to measure its thermal response. With this method, we have successfully measured the specific heat and thermal conductivity of platinum wire specimens at cryogenic temperatures, and measured those thermal quantities of tiny carbon nanotube bundles some of which are only ∼10−9 g in mass.
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Dates
Type | When |
---|---|
Created | 23 years ago (July 26, 2002, 10:18 a.m.) |
Deposited | 1 year, 6 months ago (Feb. 6, 2024, 3 p.m.) |
Indexed | 2 weeks, 2 days ago (Aug. 6, 2025, 9:17 a.m.) |
Issued | 24 years, 1 month ago (July 1, 2001) |
Published | 24 years, 1 month ago (July 1, 2001) |
Published Print | 24 years, 1 month ago (July 1, 2001) |
@article{Lu_2001, title={3ω method for specific heat and thermal conductivity measurements}, volume={72}, ISSN={1089-7623}, url={http://dx.doi.org/10.1063/1.1378340}, DOI={10.1063/1.1378340}, number={7}, journal={Review of Scientific Instruments}, publisher={AIP Publishing}, author={Lu, L. and Yi, W. and Zhang, D. L.}, year={2001}, month=jul, pages={2996–3003} }