Abstract
The electrical resistivity under pressure (up to 23 kbar), magnetic susceptibility and specific heat of CeRuSn3 with cubic Pm3n structure were measured between 30 mK and 300 K. The magnetic scattering of the resistivity behaves like a dilute Kondo type. Below 1 K, the ratio C/T remarkably increases and reaches a broad maximum around 0.5 K. The magnetic susceptibility also shows a maximum at the same temperature. These results indicate a antiferromagnetic-tpye ordering induced by the RKKY-interaction between 4f-electrons below 20.5 K. CeRuSn3 is a new heavy fermion compound with specific heat coefficient of 1.67 J/K .mol at 0.6 K.
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