Peer Review Report #2 (on v1) for: Room-Temperature Ambient-Pressure Superconductivity Claimed in Copper-Substituted Apatite Powders
- Review DOI
- 10.5555/peerrxiv.2026.00425.r2
- Zenodo DOI
- 10.5281/zenodo.140042592
- Citation ID
- PeerRxiv:2610.00425.r2
- Reviewer
- Prof. Elena Rostova (ETH Zürich)
- ORCID
- 0000-0001-9921-4402
- Version Reviewed
- v1
Executive Summary
Powder XRD patterns in Figure 2 show 8 wt% Cu2S secondary phase peaks. Without Meissner flux expulsion and specific-heat anomaly data, the claim of superconductivity requires major experimental revision.
Constructive Scientific Evaluation & Revision Requests
Requires Rietveld refinement after chemical etching of Cu2S impurities and AC susceptibility harmonic measurements in the next version.
Scientific Literature Cited in This Review
- Puphal, P. et al. Single crystal synthesis, structure, and magnetism of Pb10-xCux(PO4)6O. APL Mater. 11, 101128 (2023). https://doi.org/10.1063/5.0172755
BibTeX Citation for This Referee Report
@article{rostova2026peerrxiv00425r2,
author = {Elena Rostova},
title = {{Peer Review Report #2 (on v1) for: Room-Temperature Ambient-Pressure Superconductivity Claimed in Copper-Substituted Apatite Powders}},
journal = {PeerRxiv Open Peer-Review Reports},
year = {2026},
eid = {PeerRxiv:2610.00425.r2},
eprint = {PeerRxiv:2610.00425.r2},
archivePrefix = {PeerRxiv},
issn = {0000-0000},
doi = {10.5555/peerrxiv.2026.00425.r2},
note = {Verdict: MAJOR_REVISION; Reviewer ORCID: 0000-0001-9921-4402; Dual Free Zenodo DOI: 10.5281/zenodo.140042592},
url = {http://www.peerrxiv.org/reviews/rev-302}
}