${}^{75}$As NQR and NMR studies of superconductivity and electron correlations in iron arsenide Li${}_x$FeAs

Z. Li, Y. Ooe, X. C. Wang +4

We report the ${}^{75}$As-NQR and NMR studies on the iron arsenide superconductor Li${}_x$FeAs with $T_{\mathrm{c}}\sim 17$ K. The spin lattice relaxation rate, $1/T_1$, decreases belo…