Fermi surface transformation at the pseudogap critical point of a cuprate superconductor
| dc.creator | Fang, Yawen | |
| dc.creator | Grissonnanche, Gael | |
| dc.creator | Legros, Anaelle | |
| dc.creator | Verret, Simon | |
| dc.creator | Laliberte, Francis | |
| dc.creator | Collignon, Clement | |
| dc.creator | Ataei, Amirreza | |
| dc.creator | Dion, Maxime | |
| dc.creator | Zhou, Jianshi | |
| dc.creator | Graf, David | |
| dc.creator | Lawler, M. J. | |
| dc.creator | Goddard, Paul A. | |
| dc.creator | Taillefer, Louis | |
| dc.creator | Ramshaw, B. J. | |
| dc.date.accessioned | 2024-02-02T22:06:49Z | |
| dc.date.available | 2024-02-02T22:06:49Z | |
| dc.date.issued | 2022-05-10 | |
| dc.description.abstract | The nature of the pseudogap phase remains a major barrier to our understanding of cuprate high-temperature superconductivity. Whether or not this metallic phase is defined by any of the reported broken symmetries, the topology of its Fermi surface remains a fundamental open question. Here we use angle-dependent magnetoresistance (ADMR) to measure the Fermi surface of the cuprate Nd-LSCO. Above the critical doping p∗ -- outside of the pseudogap phase -- we fit the ADMR data and extract a Fermi surface geometry that is in quantitative agreement with angle-resolved photoemission. Below p∗ -- within the pseudogap phase -- the ADMR is qualitatively different, revealing a clear transformation of the Fermi surface. Changes in the quasiparticle lifetime across p∗ are ruled out as the cause of this transformation. Instead we find that our data are most consistent with a reconstruction of the Fermi surface by a Q=(π,π) wavevector. | |
| dc.description.department | Center for Dynamics and Control of Materials | |
| dc.description.sponsorship | A portion of this work was performed at the National High Magnetic Field Laboratory, which is supported by the National Science Foundation Cooperative Agreement No. DMR-1644779 and the State of Florida. P.A.G. acknowledges that this project is supported by the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation program (Grant Agreement No. 681260). J.-S.Z. was supported by an NSF grant (MRSEC DMR-1720595). L.T. acknowledges support from the Canadian Institute for Advanced Research (CIFAR) as a Fellow and funding from the Natural Sciences and Engineering Research Council of Canada (NSERC; PIN: 123817), the Fonds de recherche du Qu´ebec - Nature et Technologies (FRQNT), the Canada Foundation for Innovation (CFI), and a Canada Research Chair. This research was undertaken thanks in part to funding from the Canada First Research Excellence Fund. Part of this work was funded by the Gordon and Betty Moore Foundation’s EPiQS Initiative (Grant GBMF5306 to L.T.) B.J.R. and Y.F. acknowledge funding from the National Science Foundation under grant no. DMR-1752784. | |
| dc.identifier.doi | https://doi.org/10.48550/arXiv.2004.01725 | |
| dc.identifier.uri | https://hdl.handle.net/2152/123573 | |
| dc.identifier.uri | https://doi.org/10.26153/tsw/50368 | |
| dc.language.iso | en_US | |
| dc.relation.ispartof | Center for Dynamics and Control of Materials Publications | |
| dc.rights.restriction | Open | |
| dc.subject | Fermi | |
| dc.title | Fermi surface transformation at the pseudogap critical point of a cuprate superconductor | |
| dc.type | Article |