The magnetic and superconducting transition temperatures and upper critical fields have been measured for GdxEr1-xRh 4B4 and GdxY1-xRh4B 4. The pressure dependence of Tc for the Er system for x?0.05 is 0.5×10-2 K/kbar. Both systems exhibit reentrant behavior, that is a superconducting transition followed by a magnetic transition at a lower temperature that destroys the superconductivity. For the Er system, the initial additions of Gd actually raise the superconducting critical field followed by the expected decrease for greater additions.
All Science Journal Classification (ASJC) codes
- General Physics and Astronomy