%0 Journal Article %1 PhysRevB.105.134507 %A Kobayashi, Shingo %A Bhattacharya, Ankita %A Timm, Carsten %A Brydon, P. M. R. %D 2022 %I American Physical Society %J Phys. Rev. B %K a %N 13 %P 134507 %R 10.1103/PhysRevB.105.134507 %T Bogoliubov Fermi surfaces from pairing of emergent j=$\dfrac32$ fermions on the pyrochlore lattice %U https://link.aps.org/doi/10.1103/PhysRevB.105.134507 %V 105 %X We examine the appearance of superconductivity in the strong-coupling limit of the Hubbard model on the pyrochlore lattice. We focus upon the limit of half-filling, where the normal-state band structure realizes a j=32 semimetal. Introducing doping, we show that the pairing is favored in a J=2 quintet Eg state. The attractive interaction in this channel relies on the fact that Eg pairing on the pyrochlore lattice avoids the detrimental onsite repulsion. Our calculations show that a time-reversal symmetry-breaking superconducting phase is favored, which displays Bogoliubov Fermi surfaces.

@article{PhysRevB.105.134507, abstract = {We examine the appearance of superconductivity in the strong-coupling limit of the Hubbard model on the pyrochlore lattice. We focus upon the limit of half-filling, where the normal-state band structure realizes a j=32 semimetal. Introducing doping, we show that the pairing is favored in a J=2 quintet Eg state. The attractive interaction in this channel relies on the fact that Eg pairing on the pyrochlore lattice avoids the detrimental onsite repulsion. Our calculations show that a time-reversal symmetry-breaking superconducting phase is favored, which displays Bogoliubov Fermi surfaces.}, added-at = {2022-10-20T15:08:12.000+0200}, author = {Kobayashi, Shingo and Bhattacharya, Ankita and Timm, Carsten and Brydon, P. M. R.}, biburl = {https://www.bibsonomy.org/bibtex/22dd213bdd030aea352f568ec876d1d22/ctqmat}, day = 12, description = {Phys. Rev. B 105, 134507 (2022) - Bogoliubov Fermi surfaces from pairing of emergent $j=\frac{3}{2}$ fermions on the pyrochlore lattice}, doi = {10.1103/PhysRevB.105.134507}, interhash = {8cdcf4814b66ef22e3b2e8c4c2d04e81}, intrahash = {2dd213bdd030aea352f568ec876d1d22}, journal = {Phys. Rev. B}, keywords = {a}, month = {04}, number = 13, numpages = {15}, pages = 134507, publisher = {American Physical Society}, timestamp = {2023-10-18T15:11:41.000+0200}, title = {Bogoliubov Fermi surfaces from pairing of emergent j=$\mathbf{\dfrac{3}{2}}$ fermions on the pyrochlore lattice}, url = {https://link.aps.org/doi/10.1103/PhysRevB.105.134507}, volume = 105, year = 2022 }