1. Unconventional superconductivity near a flat band in organic and organometallic materials
- Author
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Manuel Fernández López, Ben Powell, Jaime Merino, and UAM. Departamento de Física Teórica de la Materia Condensada
- Subjects
Materials science ,FOS: Physical sciences ,02 engineering and technology ,01 natural sciences ,Singlet Pairing ,Magnetic Exchange ,Superconductivity (cond-mat.supr-con) ,Condensed Matter - Strongly Correlated Electrons ,Lattice (order) ,Condensed Matter::Superconductivity ,0103 physical sciences ,Unconventional Superconductivity ,Singlet state ,010306 general physics ,Is-Enabled ,Superconductivity ,Strongly Correlated Electrons (cond-mat.str-el) ,Electronic correlation ,Condensed matter physics ,Condensed Matter - Superconductivity ,Doping ,High-Temperature Superconductivity ,Física ,Critical Temperatures ,021001 nanoscience & nanotechnology ,3. Good health ,Magnetic exchange ,Organometallic Materials ,Pairing ,Flat band ,0210 nano-technology ,Honeycomb Lattices - 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. 2 H2O and Mo3S7(dmit)3., 4 pages, 4 figures + Supplemental material
- Published
- 2020