Correlation between scale-invariant normal-state resistivity and superconductivity in an electron-doped cuprate
| dc.contributor.author | Sarkar, Tarapada | |
| dc.contributor.author | Mandal, P. R. | |
| dc.contributor.author | Poniatowski, N. R. | |
| dc.contributor.author | Chan, M. K. | |
| dc.contributor.author | Greene, Richard L. | |
| dc.date.accessioned | 2021-07-19T17:43:41Z | |
| dc.date.available | 2021-07-19T17:43:41Z | |
| dc.date.issued | 2019-05-17 | |
| dc.description | Partial funding for Open Access provided by the UMD Libraries' Open Access Publishing Fund. | en_US |
| dc.description.abstract | An understanding of the normal state in the high-temperature superconducting cuprates is crucial to the ultimate understanding of the long-standing problem of the origin of the superconductivity itself. This so-called “strange metal” state is thought to be associated with a quantum critical point (QCP) hidden beneath the superconductivity. In electron-doped cuprates—in contrast to hole-doped cuprates—it is possible to access the normal state at very low temperatures and low magnetic fields to study this putative QCP and to probe the T ➔ 0 K state of these materials. We report measurements of the low-temperature normal-state magnetoresistance (MR) of the n-type cuprate system La2−xCexCuO4 and find that it is characterized by a linear-in-field behavior, which follows a scaling relation with applied field and temperature, for doping (x) above the putative QCP (x = 0.14). The magnitude of the unconventional linear MR decreases as Tc decreases and goes to zero at the end of the superconducting dome (x ~ 0.175) above which a conventional quadratic MR is found. These results show that there is a strong correlation between the quantum critical excitations of the strange metal state and the high-Tc superconductivity. | en_US |
| dc.description.uri | https://doi.org/10.1126/sciadv.aav6753 | |
| dc.identifier | https://doi.org/10.13016/yzjm-spaq | |
| dc.identifier.citation | Sarkar, T., Mandal, P. R., Poniatowski, N. R., Chan, M. K., & Greene, R. L. (2019). Correlation between scale-invariant normal-state resistivity and superconductivity in an electron-doped cuprate. Science Advances, 5(5). | en_US |
| dc.identifier.uri | http://hdl.handle.net/1903/27542 | |
| dc.language.iso | en_US | en_US |
| dc.publisher | AAAS | en_US |
| dc.relation.isAvailableAt | College of Computer, Mathematical & Natural Sciences | en_us |
| dc.relation.isAvailableAt | Physics | en_us |
| dc.relation.isAvailableAt | Digital Repository at the University of Maryland | en_us |
| dc.relation.isAvailableAt | University of Maryland (College Park, MD) | en_us |
| dc.title | Correlation between scale-invariant normal-state resistivity and superconductivity in an electron-doped cuprate | en_US |
| dc.type | Article | en_US |