Anomalous metallic state underdoped infinite-layer nickelate superconducting thin films
Abstract To date, the nature of the anomalous metallic state in two-dimensional systems remains unclear. In this study, we present the observation of a quantum superconductor-to-metal transition in underdoped Nd0.85Sr0.15NiO2 infinite-layer superconducting thin films, induced by a magnetic field. Wh...
Saved in:
| Main Authors: | , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2025-07-01
|
| Series: | Scientific Reports |
| Subjects: | |
| Online Access: | https://doi.org/10.1038/s41598-025-08013-2 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | Abstract To date, the nature of the anomalous metallic state in two-dimensional systems remains unclear. In this study, we present the observation of a quantum superconductor-to-metal transition in underdoped Nd0.85Sr0.15NiO2 infinite-layer superconducting thin films, induced by a magnetic field. When a magnetic field perpendicular to the film is applied, we observed a robust intervening anomalous metallic state, characterized by a saturating resistance at low temperatures. The disappearance of Hall resistance and a huge positive magnetoresistance are the other two characteristics of boson abnormal metal state, just like the resistance tends to be saturated at low temperature. The magnetic field-regulated Nd1-xSrxNiO2 infinite-layer thin films can provide a privileged platform for investigating the details of the anomalous metallic state in a controlled manner. |
|---|---|
| ISSN: | 2045-2322 |