# The near-room-temperature upsurge of electrical resistivity in Lu-H-N is not superconductivity, but a metal-to-poor-conductor transition

Article · Di Peng, Qiaoshi Zeng, Fujun Lan, Zhenfang Xing, Yang Ding, Ho‐kwang Mao

- Archive id: doi:10.1063/5.0166430
- Published: 2023-07-28
- Venue: Matter and Radiation at Extremes
- DOI: https://doi.org/10.1063/5.0166430
- Citations: 20
- Source URL: https://doi.org/10.1063/5.0166430
- PDF: https://pubs.aip.org/aip/mre/article-pdf/doi/10.1063/5.0166430/18065204/058401_1_5.0166430.pdf
- Provenance: openalex

## Abstract

The recent report of superconductivity in nitrogen-doped lutetium hydride (Lu-H-N) at 294 K and 1 GPa brought hope for long-sought-after ambient-condition superconductors. However, the failure of scientists worldwide to independently reproduce these results has cast intense skepticism on this exciting claim. In this work, using a reliable experimental protocol, we synthesized Lu-H-N while minimizing extrinsic influences and reproduced the sudden change in resistance near room temperature. With quantitative comparison of the temperature-dependent resistance between Lu-H-N and the pure lutetium before reaction, we were able to clarify that the drastic resistance change is most likely caused by a metal-to-poor-conductor transition rather than by superconductivity. Herein, we also briefly discuss other issues recently raised in relation to the Lu-H-N system.

_Abstract reproduced under CC-BY (publisher license, via OpenAlex)._

Topics: [Room-Temperature Superconductivity Claims & Replication](https://space-kitty.com/topics/room-temperature-claims)

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