ISSN:
1573-7357
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract Using a heat-pulse and a relaxation technique, we have performed an extensive calorimetric investigation on the reentrant superconductors Er1−xHoxRh4B4 (x=0.4 and 0.6) around their lower critical temperature. These experiments revealed a supercooling effect and thermal hysteresis, thus establishing the first-order nature of the transition. Based on the measurement of the latent heat, our thermodynamic analysis suggests that the onset of ferromagnetism is lowered by only 55 mK due to the competing superconducting phase. Results of magnetization and ac susceptibility experiments on these compounds are also included.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00683911