Field re-entrant superconductivity in Eu-doped infinite-layer nickelates
Intertwined superconducting and magnetic orders may give rise to exotic quantum phases1–7, including field-induced and re-entrant superconductivity8–10. However, such magnetism-enhanced superconductivity has remained elusive in superconductors with higher transition temperatures1–3. While infinite-layer nickelates represent a new class of unconventional superconductors11–20, the impact of rare-earth magnetism on superconducting properties remains largely unexplored. Here, we show that…