NMR investigation of Sn-doped CeRhIn$_{5}$

We have studied the local environment of the In(1) sites in the paramagnetic (PM) and antiferromagnetic (AFM) states of the heavy fermion compound CeRhIn$_{5-x}$Sn$_{x}$ ($0.0\le x\le 0.4)$ using Nuclear Magnetic Resonance (NMR) and Nuclear Quadrupole Resonance (NQR) measurements. The AFM state can be continuously suppressed by Sn doping such that the Neel temperature $T_N $ goes to zero at $x_c \cong 0.4$. $^{115}$In NQR data in the PM state reveal that the suppression of $T_N $ as a function of $x$ is accompanied by a frequency shift and a broadening of the line. We also report spin-lattice relaxation rate $T_1^{-1} $ as a function of $x$ and $T$.