2020/09/07 by Y. -S. Li, Y.-S. Li, R. Borth +3 · 1 citation
Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Ambient pressure #Electronic and Structural Properties of Oxides #Measure (data warehouse) #Physics of Superconductivity and Magnetism #Pressure measurement #Ranging #Temperature measurement #Tensile strain #Thermal #Thermometer #Ultimate tensile strength #cond-mat.mtrl-sci #cond-mat.str-el #cond-mat.supr-con
paper · pdf · doi:10.1063/5.0021919
published as Rev. Sci. Instrum. 91, 103903 (2020) · This manuscript is an extended version of the experimental methods part of arXiv:1906.07597, which is being split into two separate papers
arxiv created 2020/09/07 · openalex created_date 2020/09/11 · openalex publication_date 2020/10/01 · arxiv updated 2020/10/22 · openalex updated_date 2026/08/05
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.