Investigation of a spin-resonance in unconventional superconductor YFe2Ge2

In the layered iron-based superconductor YFe2Ge2, a high Sommerfeld ratio of order 100 mJ/mol K^2 and a T^3/2 temperature dependence of the electrical resistivity at low...在层状铁基超导体（layered iron-based superconductor）YFe₂Ge₂中，其索末菲比率（Sommerfeld ratio）高达约100 mJ/(mol·K²)，且低温下的电阻率呈现T的3/2次方的温度依赖特性