Hirsch and Marsiglio rebut claims that their Bean-model analysis of trapped flux misrepresents the Meissner state, arguing the Comment plotted their equations outside their valid field range.
Comment on "Trapped flux in a small crystal of CaKFe$_4$As$_4$ at ambient pressure and in a diamond anvil pressure cell" by S. L. Bud'ko et al
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abstract
In their paper arXiv:2405.08189, Supercond. Sci. Technol. 37 (2024) 065010 [1], Bud'ko et al. present experimental results for trapped magnetic flux for a tiny sample of a type II superconductor. The paper aims to provide evidence in support of the interpretation that similar measurements performed in samples of hydrogen-rich materials under high pressure by Minkov, Bud'ko and coauthors [2] are conclusive evidence [3] for superconductivity in hydrides under pressure. Here we point out that the new evidence presented by Bud'ko et al. [1] further supports our interpretation [4],[5] that the reported measurements of trapped flux on hydrides under pressure [2] are evidence that the samples are $not$ superconducting.
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Reply to "Is $MgB_2$ a superconductor? Comment on "Evidence Against Superconductivity in Flux Trapping Experiments on Hydrides Under High Pressure" "
Hirsch and Marsiglio rebut claims that their Bean-model analysis of trapped flux misrepresents the Meissner state, arguing the Comment plotted their equations outside their valid field range.