Version 1
: Received: 9 December 2021 / Approved: 10 December 2021 / Online: 10 December 2021 (14:08:48 CET)
Version 2
: Received: 19 December 2021 / Approved: 21 December 2021 / Online: 21 December 2021 (09:00:23 CET)
Hirsch, J.E.; van der Marel, D. Incompatibility of Published Ac Magnetic Susceptibility of a Room Temperature Superconductor with Measured Raw Data. Matter and Radiation at Extremes 2022, 7, doi:10.1063/5.0088429.
Hirsch, J.E.; van der Marel, D. Incompatibility of Published Ac Magnetic Susceptibility of a Room Temperature Superconductor with Measured Raw Data. Matter and Radiation at Extremes 2022, 7, doi:10.1063/5.0088429.
Hirsch, J.E.; van der Marel, D. Incompatibility of Published Ac Magnetic Susceptibility of a Room Temperature Superconductor with Measured Raw Data. Matter and Radiation at Extremes 2022, 7, doi:10.1063/5.0088429.
Hirsch, J.E.; van der Marel, D. Incompatibility of Published Ac Magnetic Susceptibility of a Room Temperature Superconductor with Measured Raw Data. Matter and Radiation at Extremes 2022, 7, doi:10.1063/5.0088429.
Abstract
Room temperature superconductivity has recently been reported for a carbonaceous sulfur hydride (CSH) under high pressure by Snider et al [1]. The paper reports sharp drops in magnetic susceptibility as a function of temperature for five different pressures, that are interpreted as signaling a superconducting transition. Here I question the validity and faithfulness of the magnetic susceptibility data presented in the paper by comparison with the measured raw data reported by two of the authors of ref. [2]. This casts doubt on the assertion of the paper [1] that the susceptibility measurements support the case for superconductivity in this compound.
Keywords
hydride superconductor; magnetic susceptibility; raw data; background signal
Subject
Physical Sciences, Condensed Matter Physics
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.