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We find that CePtSi is a new heavy-fermion and coherent dense Kondo-lattice compound with no magnetic or superconducting transition above 70 mK. Measurements of the magnetic contribution to the electrical resistivity, static magnetic susceptibility, and low-temperature heat capacity of CePtSi are reported. This compound has a large value of the low-temperature magnetic susceptibility [{χ}(2.4 K)=24.9×{}10^-3 cm³/mol] and, characteristic of heavy-fermion compounds, an enormous coefficient of the electronic specific heat, {γ}{~}800 mJ/mol? sup 2---.
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Lee et al. (1987) studied this question.
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