Trapped flux in a small crystal of CaKFe 4 As 4 at ambient pressure and in a diamond anvil pressure cell

In an extension of our previous work, (Bud’ko et al 2023 Supercond. Sci. Technol. 36 115001) the measurements of temperature dependent magnetization associated with trapped magnetic flux in a small single crystal of CaKFe 4 As 4 , using zero—field—cooled and field—cooled protocols were performed, on...

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Bibliographic Details
Published in:Superconductor science & technology 2024-06, Vol.37 (6), p.65010
Main Authors: Bud’ko, Sergey L, Huyan, Shuyuan, Xu, Mingyu, Canfield, Paul C
Format: Article
Language:English
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Summary:In an extension of our previous work, (Bud’ko et al 2023 Supercond. Sci. Technol. 36 115001) the measurements of temperature dependent magnetization associated with trapped magnetic flux in a small single crystal of CaKFe 4 As 4 , using zero—field—cooled and field—cooled protocols were performed, on the same crystal, at ambient pressure without a pressure cell and at 2.2 GPa in a commercial diamond anvil cell (DAC), showing comparable results. The data show that with a proper care and understanding, trapped flux measurements in superconductors indeed can be performed on samples in DACs under pressure, as was done on superhydrides (Minkov et al 2023 Nat. Phys. 19 1293).
ISSN:0953-2048
1361-6668
DOI:10.1088/1361-6668/ad45c7