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Heat-capacity measurements under uniaxial pressure using a piezo-driven device

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Li_2020_RSI_Heat_capacity_CC.pdf (3.883Mb)
Date
21/10/2020
Author
Li, Y.-S.
Borth, R.
Hicks, C. W.
Mackenzie, A. P.
Nicklas, M.
Keywords
QC Physics
TK Electrical engineering. Electronics Nuclear engineering
NDAS
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Abstract
We report the development of a technique to measure heat capacity at large uniaxial pressure using a piezoelectric-driven device generating compressive and tensile strain in the sample. Our setup is optimized for temperatures ranging from 8 K down to millikelvin. Using an AC heat-capacity technique, we are able to achieve an extremely high resolution and to probe a homogeneously strained part of the sample. We demonstrate the capabilities of our setup on the unconventional superconductor Sr2RuO4. By replacing thermometer and adjusting the remaining setup accordingly, the temperature regime of the experiment can be adapted to other temperature ranges of interest.
Citation
Li , Y-S , Borth , R , Hicks , C W , Mackenzie , A P & Nicklas , M 2020 , ' Heat-capacity measurements under uniaxial pressure using a piezo-driven device ' , Review of Scientific Instruments , vol. 91 , no. 10 , 103903 . https://doi.org/10.1063/5.0021919
Publication
Review of Scientific Instruments
Status
Peer reviewed
DOI
https://doi.org/10.1063/5.0021919
ISSN
0034-6748
Type
Journal article
Rights
Coyright © 2020 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
Description
Y.S.L. acknowledges the support of a St Leonards scholarship from the University of St Andrews, the Engineering and Physical Sciences Research Council via the Scottish Condensed Matter Centre for Doctoral Training under Grant No. EP/G03673X/1, and the Max Planck Society.
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  • University of St Andrews Research
URI
http://hdl.handle.net/10023/20932

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