Abstract
The electrical resistivity under pressure (up to 23 kbar), magnetic susceptibility and specific heat of CeRuSn 3 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. CeRuSn 3 is a new heavy fermion compound with specific heat coefficient of 1.67 J/K .mol at 0.6 K.
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