Short commentary on comparing previous claim of RT superconductivity with the data of arXiv:1807.08572, "Evidence for Superconductivity at Ambient Temperature and Pressure in Nanostructures"

TL;DR

This paper critically compares two claims of room temperature superconductivity involving silver, questioning whether observed phenomena truly indicate superconductivity or suggest alternative physical explanations.

Contribution

It provides a comparative analysis of two recent claims of ambient temperature superconductivity, highlighting inconsistencies and raising questions about the true nature of observed phenomena.

Findings

Both claims observe low resistance and diamagnetism.

Silver is a common ingredient in both reports.

Missing field cool data may suggest alternative phenomena.

Abstract

I briefly mention a previous claim of room temperature superconductivity ( arXiv:0905.3524) in Ag-based oxide material and compare their results with the most recent claim of ambient temperature superconductivity in arXiv:1807.08572. In both cases, an electrical transition to low resistance state and diamagnetism are observed. Silver is a common ingredient in both claims. Does it mean that silver holds the key to RT superconductivity or, the missing field cool data (in both reports) hint of some other physical phenomenon than superconductivity.