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| Format: | Preprint |
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2024
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| Online Access: | https://arxiv.org/abs/2412.07792 |
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| _version_ | 1866911641372721152 |
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| author | Zen, N. |
| author_facet | Zen, N. |
| contents | In Fig. 4c, under the section titled "Pinning and thermally activated motion of vortices" in arXiv:2206.14108 and Nat Phys. 19, 1293 (2023) [1], Minkov and co-workers presented the time dependence of the magnetic moment of sulfur hydride (H$_{3}$S) under high pressure and argued that they had observed magnetic flux creep at 165 K, 180 K and 185 K. Flux creep is a phenomenon observed under the assumption that the material under study can trap magnetic flux, and thus, Fig. 4c serves as evidence that H$_{3}$S traps magnetic flux and is a high-temperature superconductor. The claim remains unchanged even in the recently published Author Correction [2] to Ref. [1]. However, Ref. [2] discloses an experimental protocol they used to collect the time-dependent magnetic moment data. In this Commentary Paper, we point out that the protocol is not applicable to H$_{3}$S under high pressure and propose an alternative protocol. The correct protocol demonstrates that the claim in Refs. [1,2] -- that their time-dependent magnetic moment data serve as evidence of "pinning and thermally activated motion of vortices" -- is indeed invalid. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2412_07792 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | On the Author Correction to "Magnetic flux trapping in hydrogen-rich high-temperature superconductors", Nat Phys. 19, 1293 (2023), arXiv:2206.14108 Zen, N. Superconductivity In Fig. 4c, under the section titled "Pinning and thermally activated motion of vortices" in arXiv:2206.14108 and Nat Phys. 19, 1293 (2023) [1], Minkov and co-workers presented the time dependence of the magnetic moment of sulfur hydride (H$_{3}$S) under high pressure and argued that they had observed magnetic flux creep at 165 K, 180 K and 185 K. Flux creep is a phenomenon observed under the assumption that the material under study can trap magnetic flux, and thus, Fig. 4c serves as evidence that H$_{3}$S traps magnetic flux and is a high-temperature superconductor. The claim remains unchanged even in the recently published Author Correction [2] to Ref. [1]. However, Ref. [2] discloses an experimental protocol they used to collect the time-dependent magnetic moment data. In this Commentary Paper, we point out that the protocol is not applicable to H$_{3}$S under high pressure and propose an alternative protocol. The correct protocol demonstrates that the claim in Refs. [1,2] -- that their time-dependent magnetic moment data serve as evidence of "pinning and thermally activated motion of vortices" -- is indeed invalid. |
| title | On the Author Correction to "Magnetic flux trapping in hydrogen-rich high-temperature superconductors", Nat Phys. 19, 1293 (2023), arXiv:2206.14108 |
| topic | Superconductivity |
| url | https://arxiv.org/abs/2412.07792 |