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Data for Fermi surface transformation at the pseudogap critical point of a cuprate superconductor
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Fang, Yawen, Grissonnanche, Gaël, Legros, Anaëlle, Verret, Simon, Laliberte, Francis, Collignon, Clément, Ataei, Amirreza, Dion, Maxime, Zhou, Jianshi, Graf, David, Lawler, M. J., Goddard, Paul A., Taillefer, Louis and Ramshaw, B. J. (2022) Data for Fermi surface transformation at the pseudogap critical point of a cuprate superconductor. [Dataset]
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Plain Text (Readme file)
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Archive (ZIP) (Dataset)
Fang_etal_NatPhys2022.zip - Published Version Available under License Creative Commons Attribution 4.0. Download (68Kb) |
Official URL: http://wrap.warwick.ac.uk/161600/
Abstract
The nature of the pseudogap phase remains a major puzzle in 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 La1.6–xNd0.4SrxCuO4 cuprate. Outside the pseudogap phase, we fit the ADMR data and extract a Fermi surface geometry that is in excellent agreement with angle-resolved photoemission data. Within the pseudogap phase, the ADMR is qualitatively different, revealing a transformation of the Fermi surface. We can rule out changes in the quasiparticle lifetime as the sole cause of this transformation. We find that our data are most consistent with a pseudogap Fermi surface that consists of small, nodal hole pockets, thereby accounting for the drop in carrier density across the pseudogap transition found in several cuprates.
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| Subjects: | Q Science > QC Physics T Technology > TK Electrical engineering. Electronics Nuclear engineering |
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| Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | |||||||||||||||||||||||||||||||||||||||
| Type of Data: | experimental data | |||||||||||||||||||||||||||||||||||||||
| Library of Congress Subject Headings (LCSH): | Fermi surfaces, High temperature superconductivity, Magnetoresistance, Semiconductor doping, Energy gap (Physics) | |||||||||||||||||||||||||||||||||||||||
| Publisher: | University of Warwick, Department of Physics | |||||||||||||||||||||||||||||||||||||||
| Official Date: | 15 March 2022 | |||||||||||||||||||||||||||||||||||||||
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| Status: | Not Peer Reviewed | |||||||||||||||||||||||||||||||||||||||
| Publication Status: | Published | |||||||||||||||||||||||||||||||||||||||
| Media of Output (format): | .dat | |||||||||||||||||||||||||||||||||||||||
| Access rights to Published version: | Open Access (Creative Commons) | |||||||||||||||||||||||||||||||||||||||
| Copyright Holders: | University of Warwick | |||||||||||||||||||||||||||||||||||||||
| Description: | The archive contains the experimental data from the following figures: Figure 1c Data are listed in the archive as follows Fig??_HxxTyyphizz.dat where |
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| Date of first compliant deposit: | 18 January 2022 | |||||||||||||||||||||||||||||||||||||||
| Date of first compliant Open Access: | 15 March 2022 | |||||||||||||||||||||||||||||||||||||||
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