Abstract
The specific heat and magnetic susceptibility of nanocrystalline Pd with an average particle size around 80 Å as well as of bulk Pd were investigated as a function of temperature between 1 and 20 K, and between 1.8 and 300 K, respectively. A quadratic temperature term of the specific heat was observed in nanocrystalline Pd but not in bulk Pd. In Pd nanocrystals the temperature coefficient of the electronic (/phononic) specific heat is smaller (/larger) than those in bulk Pd. The peak of the magnetic susceptibility observed in bulk Pd near 80 K disappeared in nanocrystalline Pd. These results suggest that the variation of the energy band near the Fermi surface is steeper in nanocrystalline Pd than in bulk Pd.
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