Direct measurement of the upper critical field in a cuprate superconductor

Autor: Ruixing Liang, Nicolas Doiron-Leyraud, B. Vignolle, S. René de Cotret, Mike Sutherland, S. Krämer, Nigel E. Hussey, M.-È. Delage, Johan Juul Chang, Cyril Proust, David Graf, Brad Ramshaw, A. Juneau-Fecteau, O. Cyr-Choinière, Francis Laliberte, D. A. Bonn, Walter Hardy, David LeBoeuf, Gael Grissonnanche, Seiji Adachi, J.-H.. Park, Louis Taillefer, Sophie Dufour-Beauséjour
Přispěvatelé: Département de Physique et RQMP, Université de Sherbrooke (UdeS), Laboratoire national des champs magnétiques intenses - Toulouse (LNCMI-T), Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Institute of Hydrobiology - Chinese Academy of Sciences, Marine and Estuarine Fisheries (Ministry of Agriculture), Department of Physics and Astronomy [Vancouver], University of British Columbia (UBC), Dpt of Physics [Yokohama], H. H. Wills Physics Laboratory [Bristol], University of Bristol [Bristol], Cavendish Laboratory, University of Cambridge [UK] (CAM), Laboratoire des champs magnétiques intenses (LCMI-GHMFL), Centre National de la Recherche Scientifique (CNRS), National High Magnetic Field Laboratory (NHMFL), Florida State University [Tallahassee] (FSU), Département d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée (DAPNIA), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), University of Britsh Columbia [Vancouver], Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Laboratoire National des Champs Magnétiques Pulsés (LNCMP), Centre National de la Recherche Scientifique (CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA), Laboratoire national des champs magnétiques intenses - Grenoble (LNCMI-G), Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS)-Université Toulouse III - Paul Sabatier (UT3), SynTest Korea, Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse)
Jazyk: angličtina
Rok vydání: 2013
Předmět:
Field (physics)
FOS: Physical sciences
General Physics and Astronomy
Correlated Electron Systems / High Field Magnet Laboratory (HFML)
Article
General Biochemistry
Genetics and Molecular Biology
Superconductivity (cond-mat.supr-con)
Condensed Matter - Strongly Correlated Electrons
Thermal conductivity
Phase (matter)
Condensed Matter::Superconductivity
Cuprate
Critical field
GeneralLiterature_REFERENCE(e.g.
dictionaries
encyclopedias
glossaries)
ComputingMilieux_MISCELLANEOUS
Physics
Superconductivity
Multidisciplinary
Strongly Correlated Electrons (cond-mat.str-el)
Condensed matter physics
Condensed Matter - Superconductivity
Doping
General Chemistry
Magnetic field
[PHYS.COND.CM-S]Physics [physics]/Condensed Matter [cond-mat]/Superconductivity [cond-mat.supr-con]
Condensed Matter::Strongly Correlated Electrons
[PHYS.COND.CM-SCE]Physics [physics]/Condensed Matter [cond-mat]/Strongly Correlated Electrons [cond-mat.str-el]
Zdroj: Nature Communications
Nature Communications, 2014, 5 (1), pp.3280. ⟨10.1038/ncomms4280⟩
Nature Communications, 5
Nature Communications, Nature Publishing Group, 2014, 5 (1)
Nature Communications, Nature Publishing Group, 2014, 5 (1), pp.3280. ⟨10.1038/ncomms4280⟩
NATURE COMMUNICATIONS
ISSN: 2041-1723
DOI: 10.1038/ncomms4280⟩
Popis: In the quest to increase the critical temperature Tc of cuprate superconductors, it is essential to identify the factors that limit the strength of superconductivity. The upper critical field Hc2 is a fundamental measure of that strength, yet there is no agreement on its magnitude and doping dependence in cuprate superconductors. Here we show that the thermal conductivity can be used to directly detect Hc2 in the cuprates YBa2Cu3Oy, YBa2Cu4O8 and Tl2Ba2CuO6+δ, allowing us to map out Hc2 across the doping phase diagram. It exhibits two peaks, each located at a critical point where the Fermi surface of YBa2Cu3Oy is known to undergo a transformation. Below the higher critical point, the condensation energy, obtained directly from Hc2, suffers a sudden 20-fold collapse. This reveals that phase competition—associated with Fermi-surface reconstruction and charge-density-wave order—is a key limiting factor in the superconductivity of cuprates.
The point at which a magnetic field kills superconductivity in the cuprates has been difficult to measure. Grissonnanche et al. use thermal conductivity measurements to reliably determine this field and find that it drops suddenly below some critical doping, suggesting the onset of a new competing phase.
Databáze: OpenAIRE
Externí odkaz: