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- Title
Electromagnetic properties of copper doped lead apatite Pb<sub>10−x</sub>Cu<sub>x</sub>(PO<sub>4</sub>)<sub>6</sub>O.
- Authors
Singh, M.; Saha, P.; Kumar, K.; Takhar, D.; Birajdar, B.; Awana, V. P. S.; Patnaik, S.
- Abstract
We report on the structural, electrical and magnetic measurements in as-grown polycrystalline samples of Pb10−xCux(PO4)6O. This compound has been recently reported to be a room temperature superconductor. Our as-grown specimen has excellent XRD matching with the original submission of Lee et al. This sample has 1.5% of Cu2S as an impurity phase. A resistive transition around 380 K, possibly corresponding to structural transitions of Cu2S, is observed. No evidence of superconducting to normal state transitions in I–V characteristics at room temperature is obtained. Magnetization measurements show linear diamagnetic behavior that cannot be associated with the superconducting state. Hall measurements provide evidence of hole doping through Cu substitution. In summary, we find no evidence for room temperature ambient pressure superconductivity in Cu doped lead apatite Pb10−xCux(PO4)6O.
- Subjects
LEAD; COPPER; APATITE; MAGNETIZATION measurement; MAGNETIC measurements
- Publication
Journal of Materials Science, 2024, Vol 59, Issue 4, p1464
- ISSN
0022-2461
- Publication type
Article
- DOI
10.1007/s10853-023-09261-1