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Alternating current calorimetry at very high pressure and low temperature

MPG-Autoren
http://pubman.mpdl.mpg.de/cone/persons/resource/persons126909

Wilhelm,  H.
Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Zitation

Wilhelm, H., & Jaccard, D. (2002). Alternating current calorimetry at very high pressure and low temperature. Journal of Physics-Condensed Matter, 14(44), 10683-10687. doi:10.1088/0953-8984/14/44/357.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-0015-30D4-3
Zusammenfassung
The specific heat of CePd2.02Ge1.98 has been measured with an ac calorimetric technique up to 22 GPa for temperatures in the range 0.3 K < T < 10 K. A thermocouple allowed the temperature oscillations to be read when an ac heating current was sent through the sample. The inverse of the thermovoltage V, recorded at low temperature exhibits a pronounced anomaly as a function of pressure. It is shown that 1/V-ac extrapolated to zero temperature is a measure of the Sommerfeld coefficient gamma.