Effect of low-temperature compression on superconductivity and crystal structure in strontium metal
The superconducting and structural properties of strontium metal are examined under pressures up to 60 GPa at cryogenic temperatures. Low-temperature pressure application doubles the superconducting critical temperature between 35--42 GPa compared to previous results with cryogenic cooling after room-temperature compression. Low-temperature x-ray diffraction shows that the Sr-IV phase remains stable up to 60 GPa, suggesting that thermal energy aids in overcoming kinetic barriers to the Sr-V phase, which appears above 46 GPa under room-temperature compression.
Authors
- P. J. Hirschfeld (ORCID: https://orcid.org/0000-0003-0375-7386)
- J. J. Hamlin (ORCID: https://orcid.org/0000-0002-8685-153X)
- Daniel Jackson (ORCID: https://orcid.org/0000-0003-0847-3681)
- Yogesh K. Vohra (ORCID: https://orcid.org/0000-0002-2776-3695)
- Ravhi S. Kumar (ORCID: https://orcid.org/0000-0002-1967-1619)
- Russell J. Hemley (ORCID: https://orcid.org/0000-0001-7398-8521)
- Shubham Sinha (ORCID: https://orcid.org/0000-0002-2115-9892)
- Derrick VanGennep (ORCID: https://orcid.org/0000-0002-8944-3486)
- Richard G. Hennig (ORCID: https://orcid.org/0000-0003-4933-7686)
- Changyong Park (ORCID: https://orcid.org/0000-0002-3363-5788)
- G. R. Stewart (ORCID: https://orcid.org/0000-0001-7251-1684)
- Jinhyuk Lim (ORCID: https://orcid.org/0000-0002-9406-4536)
Institutions
- Argonne National Laboratory (US)
- Eastern Illinois University (US)
- University of Alabama at Birmingham (US)
- University of Florida (US)
- University of Illinois Chicago (US)
Publication Details
- Journal
- Physical review. B./Physical review. B
- Published
- 2024-11-25
- DOI
- https://doi.org/10.1103/physrevb.110.174519
- Citations
- 2
- Primary Topic
- High-pressure geophysics and materials
- Type
- article
- Field-Weighted Citation Impact
- 1.07
Funders
- National Science Foundation
- U.S. Department of Energy
- National Nuclear Security Administration