Low-Temperature Specific Heat of Arsenic

Abstract

The specific heat of arsenic has been measured from 0.54 to 4.2\ifmmode^\circ\else\textdegree\fi{}K. A least-squares fit to the data in the 0.54 to 1.1\ifmmode^\circ\else\textdegree\fi{}K range gave $C=(0.191\ifmmode\pm\else\textpm\fi{}0.001)T+(0.0865\ifmmode\pm\else\textpm\fi{}0.0006){T}^{3}+(0.0025\ifmmode\pm\else\textpm\fi{}0.0001){T}^{\ensuremath{-}2}$ mJ/mole \ifmmode^\circ\else\textdegree\fi{}K, indicating a Debye temperature of (282.2\ifmmode\pm\else\textpm\fi{}0.6)\ifmmode^\circ\else\textdegree\fi{}K and a quadrupole frequency of 46\ifmmode\pm\else\textpm\fi{}1 Mc/sec. The uncertainties are 1 rms deviation of the mean. These results are in good agreement with other specific-heat and Fermi-surface data.