Abstract
We report the 75 As nuclear magnetic resonance (NMR), nuclear quadrupole resonance (NQR) and specific heat measurements of the heavily hole-doped superconductor KFe 2 As 2 (superconducting transition temperature T c ≃3.5 K) using high quality single crystals. NMR Knight shifts in superconducting state clearly indicate that spin–singlet superconductivity realizes in this material. It is noted that the electronic specific heat coefficient of the material is 93.0 mJ/K 2 mol-fu and that the value is quite heavy for d electron system.
Full Text 
Sign-in/Register to access full text options
Sign-in/Register to access full text options 
Paper version not known
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
