Abstract
KEESOM and Clark1 have shown that the atomic heat of nickel at low temperatures contains a linear term 0.0019 T, which is many times bigger than the contribution from the free electrons to be expected from the Sommerfeld theory. Mott2 has suggested that this term is due to the unfilled quantum states (positive holes) in the d-shell of nickel, and that a similar term should occur for the other transition metals, whether ferromagnetic or paramagnetic.
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References
W. H. Keesom and C. W. Clark, Physica, 2, 513 (1935). K. Clusius and J. Goldmann, Z. phys. Chem., B, 31, 256 (1936).
N. F. Mott, Proc. Roy. Soc., A, 152, 42 (1936).
F. Simon, Z. Elektrochemie, 34, 530 (1928).
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PICKARD, G. Electronic Specific Heat in Palladium. Nature 138, 123 (1936). https://doi.org/10.1038/138123b0
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DOI: https://doi.org/10.1038/138123b0
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