Referee Report #3 · MAJOR REVISION
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Peer Review Report #3 (on v1) for: Room-Temperature Ambient-Pressure Superconductivity Claimed in Copper-Substituted Apatite Powders

Review DOI
10.5555/peerrxiv.2026.00425.r3
Zenodo DOI
10.5281/zenodo.140042593
Citation ID
PeerRxiv:2610.00425.r3
Reviewer
Dr. Marcus Vance (Massachusetts Institute of Technology (MIT))
ORCID
0000-0003-1182-7741
Version Reviewed
v1

Executive Summary

While the authors uploaded their raw lock-in amplifier traces to Zenodo, re-plotting the V-I curve on a log-log scale shows ohmic contact resistance rather than a superconducting critical current.

Constructive Scientific Evaluation & Revision Requests

Major revision requested: either reframe the manuscript as a quantitative study of Cu2S percolative metal-insulator transitions or provide genuine Meissner effect evidence.

Scientific Literature Cited in This Review

  1. Zhu, S. et al. First-order transition in Pb10-xCux(PO4)6O (0.9 < x < 1.1) containing Cu2S. Matter 6, 4401–4407 (2023). https://doi.org/10.1016/j.matt.2023.11.001

BibTeX Citation for This Referee Report

@article{vance2026peerrxiv00425r3,
  author        = {Marcus Vance},
  title         = {{Peer Review Report #3 (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.r3},
  eprint        = {PeerRxiv:2610.00425.r3},
  archivePrefix = {PeerRxiv},
  issn          = {0000-0000},
  doi           = {10.5555/peerrxiv.2026.00425.r3},
  note          = {Verdict: MAJOR_REVISION; Reviewer ORCID: 0000-0003-1182-7741; Dual Free Zenodo DOI: 10.5281/zenodo.140042593},
  url           = {http://peerrxiv-platform.pages.dev/reviews/rev-303}
}