dc.contributor.author | Yu, Tao | |
dc.contributor.author | Kennes, Dante M. | |
dc.contributor.author | Rubio Secades, Angel | |
dc.contributor.author | Sentef, Michael A. | |
dc.date.accessioned | 2021-11-02T11:31:18Z | |
dc.date.available | 2021-11-02T11:31:18Z | |
dc.date.issued | 2021-09-13 | |
dc.identifier.citation | Physical Review Letters 127(12) : (2021) // Article ID 127001 | es_ES |
dc.identifier.issn | 0031-9007 | |
dc.identifier.issn | 1079-7114 | |
dc.identifier.uri | http://hdl.handle.net/10810/53692 | |
dc.description.abstract | Recent measurements of the resistivity in magic-angle twisted bilayer graphene near the superconducting transition temperature show twofold anisotropy, or nematicity, when changing the direction of an in-plane magnetic field [Cao et al., Science 372, 264 (2021)]. This was interpreted as strong evidence for exotic nematic superconductivity instead of the widely proposed chiral superconductivity. Counter-intuitively, we demonstrate that in two-dimensional chiral superconductors the in-plane magnetic field can hybridize the two chiral superconducting order parameters to induce a phase that shows nematicity in the transport response. Its paraconductivity is modulated as cos(2 theta(B)), with theta(B) being the direction of the in-plane magnetic field, consistent with experiment in twisted bilayer graphene. We therefore suggest that the nematic response reported by Cao et al. does not rule out a chiral superconducting ground state. | es_ES |
dc.description.sponsorship | We thank Rafael Fernandes and Liang Fu for useful discussions. T. Y. and M. A. S. acknowledge financial support by Deutsche Forschungsgemeinschaft through the Emmy Noether program (SE 2558/2). D. M. K. acknowledges support by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) via RTG 1995, within the Priority Program SPP 2244 "2DMP" and Germany's Excellence StrategyCluster of Excellence Matter and Light for Quantum Computing (ML4Q) EXC 2004/1-390534769. A. R. acknowledges support from the European Research Council (ERC-2015-AdG-694097), UPV/EHU Grupos Consolidados (IT1249-19) and the Cluster of Excellence "CUI: Advanced Imaging of Matter" of the Deutsche Forschungsgemeinschaft (DFG)-EXC 2056-project ID 390715994. The Flatiron Institute is a division of the Simons Foundation. We acknowledge support from the Max Planck-New York City Center for Non-Equilibrium Quantum Phenomena. | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | American Physical Society | es_ES |
dc.relation | info:eu-repo/grantAgreement/EC/H2020/694097 | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/es/ | * |
dc.subject | symmetry | es_ES |
dc.subject | fluctuations | es_ES |
dc.title | Nematicity Arising from a Chiral Superconducting Ground State in Magic-Angle Twisted Bilayer Graphene under In-Plane Magnetic Fields | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.rights.holder | Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license.
Attribution 4.0 International (CC BY 4.0) | es_ES |
dc.rights.holder | Atribución 3.0 España | * |
dc.relation.publisherversion | https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.127.127001 | es_ES |
dc.identifier.doi | 10.1103/PhysRevLett.127.127001 | |
dc.contributor.funder | European Commission | |
dc.departamentoes | Polímeros y Materiales Avanzados: Física, Química y Tecnología | es_ES |
dc.departamentoeu | Polimero eta Material Aurreratuak: Fisika, Kimika eta Teknologia | es_ES |