Unconventional superconductivity near a flat band in organic and organometallic materials

被引：8

作者：

Merino, Jaime ^{[1
,2
]}

Fernandez Lopez, Manuel ^{[1
,2
]}

Powell, Ben J. ^{[3
]}

机构：

[1] Univ Autonoma Madrid, Condensed Matter Phys Ctr IFIMAC, Dept Fis Teor Mat Condensada, Madrid 28049, Spain

[2] Univ Autonoma Madrid, Inst Nicolas Cabrera, Madrid 28049, Spain

[3] Univ Queensland, Sch Math & Phys, St Lucia, Qld 4072, Australia

来源：

PHYSICAL REVIEW B | 2021年 / 103卷 / 09期

基金：

澳大利亚研究理事会;

关键词：

GRAPHENE; ANTIFERROMAGNET; CONDUCTORS; INSULATOR; STATE; ORDER;

D O I：

10.1103/PhysRevB.103.094517

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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 center dot 2H(2)O and Mo3S7(dmit)(3).

引用

页数：6

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