Anisotropic behavior in the CeRhSn single crystal

We report on magnetization, magnetic susceptibility, specific heat, electrical resistivity and thermal expansion measurements performed on a CeRhSn single crystal at temperatures between 2 and 300K and in magnetic fields up to 14T. No indication of magnetic ordering in low-temperature susceptibility, specific heat and resistivity was observed. Besides the maximum in the temperature dependence of resistivity for current along the a-axis no indication for the previously reported Ce-ion valence fluctuations was found in experimental data. In particular, the temperature dependence of susceptibility is monotonous and the magnetic specific heat above 20K is negligible. The linear thermal expansion is isotropic and has the character usual for normal metal. Based on these results we propose for CeRhSn an alternative scenario considering that the Ce 4f-electrons are itinerant.