ISSN:
1089-7623
Quelle:
AIP Digital Archive
Thema:
Physik
,
Elektrotechnik, Elektronik, Nachrichtentechnik
Notizen:
A sinusoïdal temperature modulation method has been developed to provide direct access to the derivative of the resistance with respect to temperature dR/dT. This quantity is of a high physical interest since it gives information on the critical behavior of the specific heat of magnetic materials near the critical points. The original aspect of such an experimental device is the high sensitivity of its detection. Indeed it provides a resolution ΔR/R of 10−9 with R=3 mΩ. Finally, we demonstrate the high accuracy of this technique with experimental measurements of dR/dT of a rare-earth single crystal.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1063/1.1143244
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