Nodeless Superconducting State in the Presence of Zero-Field Staggered Magnetization in CeRh${}_2$As${}_2$

J. Juraszek, G. Chajewski, D. Kaczorowski +3

The tetragonal heavy-fermion superconductor CeRh${}_2$As${}_2$ with a critical temperature $T_c$ $\approx$ 0.34 K exhibits an intriguing magnetic field-induced transition between l…