论文标题
高压碳硫硫氢化物中的异常行为
Anomalous behavior in high-pressure carbonaceous sulfur hydride
论文作者
论文摘要
Snider等人的一项新的实验研究。 [Nature 586，373-377（2020）]报道了在高压碳硫 - 氢系统中的行为，该系统已被作者解释为在室温下的超导性。电阻在临界温度下的突然下降以及R与T行为的变化，其磁场点指向超导性。在科学的最重要领域之一中，这是一项非常令人兴奋的研究，因此，对社区进行调查并希望重现这些结果至关重要。在此评论中，我们介绍了Hirsch和Marsiglio [Arxiv：2010.10307]的论点扩展的计算，并提供了一些有关物理机制的推测，这些猜测可能解释了观察到的数据。与Hirsch和Marsiglio一致，我们表明在实验论文中提出的分析中存在错误，并且通过正确的分析，报告的R与T数据与预期行为显着偏离。特别是，超导过渡时电阻的极急剧变化与强型II型超导体不一致。
A new experimental study by Snider et al. [Nature 586, 373-377 (2020)] reported behavior in a high-pressure carbon-sulfur-hydrogen system that has been interpreted by the authors as superconductivity at room temperature. The sudden drop of electrical resistance at a critical temperature and the change of the R vs. T behavior with an applied magnetic field point to superconductivity. This is a very exciting study in one of the most important areas of science, hence, it is crucial for the community to investigate these findings and hopefully reproduce these results. In this comment, we present calculations that expand upon the arguments put forth by Hirsch and Marsiglio [arXiv:2010.10307], and offer some speculations about physical mechanisms that might explain the observed data. In agreement with Hirsch and Marsiglio, we show that there are errors in the analysis presented in the experimental paper, and with the correct analysis, the reported R vs. T data significantly deviate from the expected behavior. In particular, the extremely sharp change in resistance at the superconducting transition is not consistent with a strongly type II superconductor.
