Interplay of local-moment ferromagnetism and superconductivity in ErRh<sub>4</sub>B<sub>4</sub>single crystals
Interplay of local-moment ferromagnetism and superconductivity in ErRh<sub>4</sub>B<sub>4</sub>single crystals
Tunnel-diode resonator technique was used to study crystals of ferromagnetic reentrant superconductor, ErRh4B4. At the boundary between ferromagnetism (FM) and superconductivity (SC), dynamic magnetic susceptibility, χ(T,H), exhibits highly asymmetric behavior upon warming and cooling as well as enhanced diamagnetism on the SC side. SC phase nucleates upon warming in a …