By making use of the recently measured spin-wave dispersion relations we have calculated the spin-wave contributions to the low-temperature specific heats of antiferromagnetic MnF2, FeF2, CoFz and NiFz from 0 to 50 OK (0 to 35 OK for CoF2) using two different numerical methods. T h e results are compared with the experimental measurements of Stout and Catalano for temperatures of 1 5 OK and above; it is suggested that further experimental measurements below 15 'K would b e worth while.
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