%0 Journal Article %1 PhysRevB.100.041117 %A Wu, Xianxin %A Fink, Mario %A Hanke, Werner %A Thomale, Ronny %A Di Sante, Domenico %D 2019 %I American Physical Society %J Phys. Rev. B %K a %N 4 %P 041117 %R 10.1103/PhysRevB.100.041117 %T Unconventional superconductivity in a doped quantum spin hall insulator %U https://link.aps.org/doi/10.1103/PhysRevB.100.041117 %V 100 %X A monolayer of jacutingaite (Pt2HgSe3) has recently been identified as a novel quantum spin Hall insulator. By first-principles calculations, we study its Fermiology in the doped regime and unveil a type-I and type-II van Hove singularity for hole and electron doping, respectively. We find that the common link between the propensity for a topological band gap at pristine filling and unconventional superconductivity at finite doping is rooted in the longer-ranged hybridization integrals on the honeycomb lattice. In a combined effort of random phase approximation and functional renormalization group, we find chiral d-wave order for the type-I and odd-parity f-wave order for the type-II regime. When longer-ranged Coulomb interaction is included, a propensity of the type-II regime towards a topological px+ipy-wave order emerges.

@article{PhysRevB.100.041117, abstract = {A monolayer of jacutingaite (Pt2HgSe3) has recently been identified as a novel quantum spin Hall insulator. By first-principles calculations, we study its Fermiology in the doped regime and unveil a type-I and type-II van Hove singularity for hole and electron doping, respectively. We find that the common link between the propensity for a topological band gap at pristine filling and unconventional superconductivity at finite doping is rooted in the longer-ranged hybridization integrals on the honeycomb lattice. In a combined effort of random phase approximation and functional renormalization group, we find chiral d-wave order for the type-I and odd-parity f-wave order for the type-II regime. When longer-ranged Coulomb interaction is included, a propensity of the type-II regime towards a topological px+ipy-wave order emerges.}, added-at = {2023-04-25T14:17:29.000+0200}, author = {Wu, Xianxin and Fink, Mario and Hanke, Werner and Thomale, Ronny and Di Sante, Domenico}, biburl = {https://www.bibsonomy.org/bibtex/289e5f73511c027a896f87bc409e952bf/ctqmat}, day = 31, description = {Unconventional superconductivity in a doped quantum spin hall insulator}, doi = {10.1103/PhysRevB.100.041117}, interhash = {e748368b01d3f6469ed943a4f5ee8f21}, intrahash = {89e5f73511c027a896f87bc409e952bf}, journal = {Phys. Rev. B}, keywords = {a}, month = {07}, number = 4, numpages = {5}, pages = 041117, publisher = {American Physical Society}, timestamp = {2023-04-25T14:17:29.000+0200}, title = {Unconventional superconductivity in a doped quantum spin hall insulator}, url = {https://link.aps.org/doi/10.1103/PhysRevB.100.041117}, volume = 100, year = 2019 }