Antiferromagnetism and Superconductivity in CeRhIn$_5$
Georg Knebel, Jonathan Buhot, Dai Aoki, Gerard Lapertot, Stephane, Raymond, Eric Ressouche, and Jacques Flouquet
TL;DR
This paper reviews recent findings on CeRhIn$_5$, a heavy fermion superconductor, highlighting how pressure and magnetic field influence the interplay between antiferromagnetism and unconventional superconductivity.
Contribution
It provides new insights into how magnetic order suppression correlates with superconductivity emergence and compares effects of doping and pressure on antiferromagnetism.
Findings
Superconductivity appears as antiferromagnetic order is suppressed by pressure.
Magnetic order re-enters within the superconducting state under magnetic field.
Sn doping suppresses antiferromagnetism similarly to hydrostatic pressure.
Abstract
We discuss recent results on the heavy fermion superconductor CeRhIn which presents ideal conditions to study the strong coupling between the suppression of antiferromagnetic order and the appearance of unconventional superconductivity. The appearance of superconductivity as function of pressure is strongly connected to the suppression of the magnetic order. Under magnetic field, the re-entrance of magnetic order inside the superconducting state shows that antiferromagnetism nucleates in the vortex cores. The suppression of antiferromagnetism in CeRhIn by Sn doping is compared to that under hydrostatic pressure.
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