Pippard relations for cubic gauche nitrogen
Abstract
The Pippard relations (CP vs. aP and aP vs. kT) are examined
at various temperatures up to 1200 K at zero pressure (P = 0) for the cubic
gauche nitrogen. The specific heat (CP) is related to the thermal
expansion (aP) and
the aP is
also related to the isothermal compressibility (kT) as
the Pippard relations for this solid structure. For those relations,
experimental data are used from the literature. It is found that the variation
of the CP with the aP and aP with the
kT is
linear. Using the linear relations dP/dT is predicted, which can be compared
with the experimental measurements in the P – T phase diagram of cubic gauche
nitrogen.
Keywords
References
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