> Yet Hamlin and other researchers insist that the group’s past requires that today’s historic claims be met with historic levels of scrutiny.
[snip]
> Most recently, in 2020 Dias and his co-authors published a study of a carbonaceous sulfur hydride (CSH) that hit its critical transition at around 14 degrees Celsius (57.2 degrees Fahrenheit) and 267 gigapascals. Almost immediately, a handful of experts spotted unusual patterns in the data used to verify the material’s response to magnetic fields. When Dias and his frequent collaborator, Ashkan Salamat, a physicist at the University of Nevada, Las Vegas released their raw data a year later in the form of a 149-page document, they detailed an unusual and complicated method for eliminating background magnetic interference — one they said was necessary for them to detect the tiny magnetic field rejected by the small sample. This method was inconsistent with how they’d described the procedure in the original paper, which led Nature to issue a retraction last September.
[snip]
> Dias defends his work vigorously. In the months since the retraction, Dias has conducted additional experiments on the CSH material at Argonne and Brookhaven National Laboratories. In these, he invited independent scientists to observe the material’s superconducting transition. He recently submitted a new manuscript to Nature that repeats the claim of high-temperature superconductivity in CSH with rigor he insists will dispel past allegations.
[1] https://www.quantamagazine.org/room-temperature-superconduct...