论文标题
Hund的超导体Li（FE，CO）
The Hund's Superconductor Li(Fe,Co)As
论文作者
论文摘要
我们结合了运输，角度分辨光发射光谱和扫描隧道光谱，以研究规范FESC FESC家族LI（Fe，CO）中Hund耦合的几种低能量表现。我们确定相干 - 触发器的跨界温度和准粒子有效质量增强的掺杂依赖性。我们的隧道光谱导致超导状态支持以下想法：从Hund的金属状态出现的超导性显示出通用的最大最大超导性GAP与过渡温度（2 $δ_{max}/k_ {max}/k_ {b} t _ {c} $）值，该值独立于坐级级别和$ t _ {c}。
We combine transport, angle-resolved photoemission spectroscopy and scanning tunneling spectroscopy to investigate several low energy manifestations of the Hund coupling in a canonical FeSC family Li(Fe,Co)As. We determine the doping dependence of the coherent-incoherent crossover temperature and the quasi-particle effective mass enhancement in the normal state. Our tunneling spectroscopy result in the superconducting state supports the idea that superconductivity emerging from Hund's metal state displays a universal maximal superconducting gap vs transition temperature (2$Δ_{max}/k_{B}T_{c}$) value, which is independent of doping level and $T_{c}$.
