Specific heat of the rare earth compound ErNi is measured in magnetic fields up to 5 T in the temperature range 4.2 to 35 K. The specific heat under applied magnetic field of 1 T is larger than that of Er3Ni below 16 K. The numerical simulation of a Gifford-McMahon cycle shows that the refrigeration capacity using an ErNi regenerator is larger than that using one of Er3Ni or lead. It is shown for the first time that the refrigeration capacity can be increased by application of a weak magnetic field to the ErNi regenerator.
|Number of pages||5|
|Journal||Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers|
|Publication status||Published - Jan 1 1996|
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)