Nodal superconductivity in FeS: Evidence from quasiparticle heat transport

Article

关键词: PHASE-DIAGRAM;   

DOI  :  10.1103/PhysRevB.94.100504

来源: SCIE

【 摘 要 】

We report low-temperature heat transport measurements on superconducting iron sulfide FeS with T-c approximate to 5 K, which has the same crystal structure and similar electronic band structure to the superconducting iron selenide FeSe. In zero magnetic field, a significant residual linear term kappa(0)/T is observed. At low field, kappa(0)/T increases rapidly with increasing field. These results suggest a nodal superconducting gap in FeS. We compare it with the sister compound FeSe and other iron-based superconductors with nodal gaps.

【 授权许可】

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