Low-Temperature Specific Heat of Arsenic

The specific heat of arsenic has been measured from 0.54 to 4.2^∘{}K. A least-squares fit to the data in the 0.54 to 1.1^∘{}K range gave C=(0.191±0.001)T+(0.0865±0.0006)T³+(0.0025±0.0001)T^-2 mJ/mole ^∘{}K, indicating a Debye temperature of (282.2±{}0.6)^∘{}K and a quadrupole frequency of 46±{}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.