Revisitation of superconductivity in K$_2$Cr$_3$As$_3$ based on the six-band model

  title={Revisitation of superconductivity in K\$\_2\$Cr\$\_3\$As\$\_3\$ based on the six-band model},
  author={Li-Da Zhang and Xianxin Wu and Heng Fan and Fan Yang and Jiangping Hu},
  journal={arXiv: Superconductivity},
We investigate the pairing symmetry of the newly synthesized quasi-one-dimension K$_2$Cr$_3$As$_3$ superconductor based on the six-band model. We adopt standard random-phase-approximation to study the Hubbard-Hund model of the system. Our results confirm the conclusions obtained from our previous three-band model: the triplet $p_z$ and $f_{y^3-3x^2y}$ wave pairings serve as the leading pairing symmetries in the weak and strong Hund's rule coupling regimes, respectively. For physically realistic… 

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