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A Novel Method for Heat Capacity Measurements near 2K

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Abstract

We have constructed a calorimeter of novel design for high resolution heat capacity measurements near 2K. This device resembles high resolution paramagnetic salt thermometers used in previous heat capacity measurements on the 4 He-Vycor system. 2 However, we have modified this thermometer so that our signal is no longer directly proportional to the temperature of the sample, but rather to the change in temperature with respect to time. We demonstrate the technique by measuring the heat capacity of paramagnetic gadolinium trichloride (GdCl 3 ) salt near its critical temperature of 2.21K.

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Authors and Affiliations

  1. Laboratory of Atomic and Solid State Physics and the Materials Science Center, Cornell University, Clark Hall, Ithaca, NY, 14853, USA

    G.M. Zassenhaus, A.L. Woodcraft & J.D. Reppy

Authors
  1. G.M. Zassenhaus
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  2. A.L. Woodcraft
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  3. J.D. Reppy
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Zassenhaus, G., Woodcraft, A. & Reppy, J. A Novel Method for Heat Capacity Measurements near 2K. Journal of Low Temperature Physics 110, 275–280 (1998). https://doi.org/10.1023/A:1022572314002

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  • DOI: https://doi.org/10.1023/A:1022572314002

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