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It has recently been reported that hydrogen-rich materials under high pressure trap magnetic flux, a tell-tale signature of superconductivity [arXiv:2206.14108v1]. Here we point out that under the protocol used in these experiments the…

超导电性 · 物理学 2023-05-31 J. E. Hirsch , F. Marsiglio

Recent discoveries of superconductivity in hydrogen-rich compounds stabilized by high pressures have shown that a critical temperature of superconductivity Tc can reach near room temperature values. The current studies focus on the search…

超导电性 · 物理学 2022-09-27 V. S. Minkov , V. Ksenofontov , S. L. Budko , E. F. Talantsev , M. I. Eremets

In Ref. [1], Minkov et al reported the time dependence of magnetic moment of hydride materials under high pressure in a diamond anvil cell. Here we point out that the straight lines interpolated with the measurement results give the…

超导电性 · 物理学 2023-10-12 N. Zen

In Nat Commun 13, 3194 (2022) [1], Minkov et al. reported magnetization measurements on hydrides under pressure that claimed to find a diamagnetic signal below a critical temperature demonstrating the existence of superconductivity. Here we…

超导电性 · 物理学 2023-10-06 J. E. Hirsch , F. Marsiglio

It is generally believed that magnetization measurements on sulfur hydride under high pressure performed in 2015 [1] provided "final convincing evidence of superconductivity" [2] in that material, in agreement with theoretical predictions…

超导电性 · 物理学 2021-05-13 J. E. Hirsch , F. Marsiglio

The preceding Comment [1], previously posted as arXiv:2312.04495 [2], on our paper J. Supercond. Nov. Mag. 35, 3141 (2022) [3] provides a welcome opportunity to clarify what we understand to be pervading misconceptions by Eremets, Minkov…

超导电性 · 物理学 2024-12-10 J. E. Hirsch , F. Marsiglio

The long-sought goal of room-temperature superconductivity has reportedly recently been realized in a carbonaceous sulfur hydride compound under high pressure, as reported by Snider et al. [1]. The evidence presented in that paper is…

超导电性 · 物理学 2021-08-31 J. E. Hirsch , F. Marsiglio

The measurement of superconductivity at above 200K in compressed samples of hydrogen sulfide and lanthanum hydride at 250K is reinvigorating the search for conventional high temperature superconductors. At the same time it exposes a…

超导电性 · 物理学 2019-10-02 Chris J. Pickard , Ion Errea , Mikhail I. Eremets

Over the past six years, superconductivity at high temperatures has been reported in a variety of hydrogen-rich compounds under high pressure. That high-temperature superconductivity should exist in these materials is expected according to…

超导电性 · 物理学 2021-04-14 J. E. Hirsch , F. Marsiglio

Metallic hydrogen, existing in remarkably extreme environments, was predicted to exhibit long-sought room-temperature superconductivity. Although the superconductivity of metallic hydrogen has not been confirmed experimentally,…

超导电性 · 物理学 2024-06-12 Zihan Zhang , Wendi Zhao , Defang Duan , Tian Cui

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…

超导电性 · 物理学 2025-04-17 J. E. Hirsch , F. Marsiglio

It is found that the magnetization curves of samples of fragments of cathode carbon deposits with a high content of multiwalled nanotubes exhibit a pronounced irreversible character, attesting to the induction of persistent currents in the…

介观与纳米尺度物理 · 物理学 2009-10-31 V. I. Tsebro , O. E. Omelyanovskii , A. P. Moravskii

Flux-trapping magnetization studies on H3S at ultra-high pressure have been reported by Minkov et al. as definitive evidence of superconductivity in this hydride system. This is very helpful in a field that has become somewhat…

超导电性 · 物理学 2024-09-20 Jeffery L. Tallon

Superconducting bulk (RE)Ba$_2$Cu$_3$O$_{7-x}$ materials (RE-rare earth elements) have been successfully used to generate magnetic flux densities in excess of 17 T. This work investigates an alternative approach by trapping flux in stacks…

超导电性 · 物理学 2017-09-12 Algirdas Baskys , Krzysztof Filar , Anup Patel , Bartek Glowacki

The search for room-temperature superconducting materials has been at the center of modern research for decades. The recent discovery of high-temperature superconductivity, under extreme pressure in hydrogen-rich materials, is a tremendous…

超导电性 · 物理学 2021-07-27 Theja N. De Silva

Since the discovery of superconductivity at 200 K in H3S [1] similar or higher transition temperatures, Tcs, have been reported for various hydrogen-rich compounds under ultra-high pressures [2]. Superconductivity was experimentally proved…

In Ref. [1], Minkov et al. reported measurements of the magnetic moment that remains after a magnetic field is turned on and then turned off for hydride materials under high pressure in a diamond anvil cell. In Refs. [2,3], Minkov et al.…

超导电性 · 物理学 2023-09-27 J. E. Hirsch , F. Marsiglio

We employed a machine-learning assisted approach to search for superconducting hydrides under ambient pressure within an extensive dataset comprising over 150 000 compounds. Our investigation yielded around 50 systems with transition…

超导电性 · 物理学 2024-03-21 Tiago F. T. Cerqueira , Yue-Wen Fang , Ion Errea , Antonio Sanna , Miguel A. L. Marques

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…

超导电性 · 物理学 2026-05-05 N. Zen

It is generally believed that sulfur hydride under high pressure is a high temperature superconductor. In National Science Review 6, 713 (2019) Huang and coworkers reported detection of superconductivity in sulfur hydride through a highly…

超导电性 · 物理学 2024-02-07 J. E. Hirsch
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