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Unconventional superconductivity near a flat band in organic and organometallic materials

Author
Merino Troncoso, Jaimeuntranslated; Fernández López, Manueluntranslated; Powell, Ben J
Entity
UAM. Departamento de Física Teórica de la Materia Condensada
Publisher
American Physical Society
Date
2021-03-25
Citation
Physical Review B 103.9 (2021): 094517
ISSN
1098-0121 (print); 1550-235X (online)
DOI
10.1103/PhysRevB.103.094517
Project
Gobierno de España. RTI2018-098452-B-I00; Gobierno de España. CEX2018-000805-M
Editor's Version
https://doi.org/10.1103/PhysRevB.103.094517
Subjects
Critical Temperatures; High-Temperature Superconductivity; Honeycomb Lattices; Is-Enabled; Magnetic Exchange; Organometallic Materials; Singlet Pairing; Unconventional Superconductivity; Física
URI
http://hdl.handle.net/10486/705066
Rights
© 2021 American Physical Society

Abstract

We study electron correlation driven superconductivity on a decorated honeycomb lattice (DHL), which has a low-energy flat band. On doping, we find singlet superconductivity with extended-s, extended-d, and f-wave symmetry mediated by magnetic exchange. f-wave singlet pairing is enabled by the lattice decoration. The critical temperature is predicted to be significantly higher than on similar lattices lacking flat bands. We discuss how high-temperature superconductivity could be realized in the DHL materials such as Rb3TT·2H2O and Mo3S7(dmit)3
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Google™ Scholar:Merino Troncoso, Jaime - Fernández López, Manuel - Powell, Ben J

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