Bibliographic Details
| Title: |
Observation of an exotic insulator to insulator transition upon electron doping the Mott insulator CeMnAsO |
| Authors: |
E. J. Wildman, G. B. Lawrence, A. Walsh, K. Morita, S. Simpson, C. Ritter, G. B. G. Stenning, A. M. Arevalo-Lopez, A. C. Mclaughlin |
| Source: |
Nature Communications, Vol 14, Iss 1, Pp 1-7 (2023) |
| Publisher Information: |
Nature Portfolio, 2023. |
| Publication Year: |
2023 |
| Collection: |
LCC:Science |
| Subject Terms: |
Science |
| More Details: |
Abstract A promising route to discover exotic electronic states in correlated electron systems is to vary the hole or electron doping away from a Mott insulating state. Important examples include quantum criticality and high-temperature superconductivity in cuprates. Here, we report the surprising discovery of a quantum insulating state upon electron doping the Mott insulator CeMnAsO, which emerges below a distinct critical transition temperature, T II. The insulator-insulator transition is accompanied by a significant reduction in electron mobility as well as a colossal Seebeck effect and slow dynamics due to decoupling of the electrons from the lattice phonons. The origin of the transition is tentatively interpreted in terms of many-body localization, which has not been observed previously in a solid-state material. |
| Document Type: |
article |
| File Description: |
electronic resource |
| Language: |
English |
| ISSN: |
2041-1723 |
| Relation: |
https://doaj.org/toc/2041-1723 |
| DOI: |
10.1038/s41467-023-42858-3 |
| Access URL: |
https://doaj.org/article/323d58d7427c4ee2ad1cf7b66c474c84 |
| Accession Number: |
edsdoj.323d58d7427c4ee2ad1cf7b66c474c84 |
| Database: |
Directory of Open Access Journals |
