Specific heat of ultrafine vanadium particles in the temperature range 1.3–10 K

The specific heat of vanadium particles smaller than 100 Å was measured in comparison with the bulk in the temperature range 1.3–10 K. In this region the heat capacity of vanadium is dominated by the electronic contribution. The lattice term in bulk vanadium as well as the vibrational enhancements i...

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Published in:Solid state communications 1976-12, Vol.20 (9), p.877-880
Main Authors: Comsa, G.H., Heitkamp, D., Räde, H.S.
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Language:English
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description The specific heat of vanadium particles smaller than 100 Å was measured in comparison with the bulk in the temperature range 1.3–10 K. In this region the heat capacity of vanadium is dominated by the electronic contribution. The lattice term in bulk vanadium as well as the vibrational enhancements in ultrafine particles due to the increased surface/volume ratio are relatively small. Compared with the bulk, the electronic specific heat of the particles shows two main differences, a broadening and smoothing of the discontinuity at the transition from the normal to the superconducting state and an increase of the slope in the normal state. Both effects can be consistently interpreted in terms of current theories by Mühlschlegel et al. and Kenner and Allen.
doi_str_mv 10.1016/0038-1098(76)91295-3
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title Specific heat of ultrafine vanadium particles in the temperature range 1.3–10 K
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