High-resolution, high-sensitive ac calorimeter.
Date
1992
Authors
Bednarz, Grzegorz
Millier, Brian
White, Mary Anne
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Abstract
A high-resoln., high-sensitivity, automated ac calorimeter capable of heat capacity measurements
of very small samples (m < 20 mg) with a temp. resoln. of a few mK in the ac mode is described.
This calorimeter also can be operated in the relaxation mode to provide abs. heat capacity values
with precision and accuracy of around 2%. This calorimeter was tested by measuring the heat capacity
of gadolinium over its ferromagnetic phase transition. The results agree well with the literature
data giving, however, substantially better resoln. of the heat capacity in the crit. region.
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Citation
Bednarz, Grzegorz, Brian Millier, and Mary Anne White. 1992. "High-resolution, high-sensitive ac calorimeter.." Review of Scientific Instruments 63(8): 3944-3952.