The superconducting (Tc and magnetic ordering (Tm) critical temperatures in RExY1-xRh1.1Sn3.6 (RE = Er, Ho) have been determined by magnetic measurements. For RE = Er superconductivity appears for any value of x, and reentry to a magnetically ordered state for x ≥ 0.6, while for RE = Ho the compound becomes either superconducting or magnetically ordered, and is expected to remain paramagnetic for x near 0.5. Theories of Abrikosov-Gorkov and Roshen-Ruvalds are used to explain Tc(x) , leading to I2N(0)G=0.23 K and 0.8 K for Er and Ho respectively. Comparison of Tm(x) with the theory of Oguchi-Obokata gives respectively J = 0.30 K and 0.96, using a Heisenberg model with z = 6.
- Proceedings of the 18th International Conference on Low Temperature Physics
van de Pasch, A. W. M., Lázaro, F. J., Blank, D. H. A., Houwman, E. P., & Flokstra, J. (1987). Superconducting and magnetic phase transitions in RExY1-xRh1.1Sn3.6 (RE=Er, Ho). Japanese journal of applied physics, 26(Suppl. 26-3), 1293-1294. https://doi.org/10.7567/JJAPS.26S3.1293