Competing magnetic orders in the superconducting state of Nd-doped CeRhIn${}_5$ under pressure

Abstract

Applied pressure drives the heavy-fermion antiferromagnet CeRhIn${}_5$ towards a quantum critical point that becomes hidden by a dome of unconventional superconductivity. Magnetic fields suppress this superconducting dome, unveiling the quantum phase transition of local character. Here, we show that $5\%$ magnetic substitution at the Ce site in CeRhIn${}_5$, either by Nd or Gd, induces a zero-field magnetic instability inside the superconducting state. This magnetic state not only should have a different ordering vector than the high-field local-moment magnetic state, but it also competes with the latter, suggesting that a spin-density-wave phase is stabilized in zero field by Nd and Gd impurities - similarly to the case of Ce${}_{0.95}$Nd${}_{0.05}$CoIn${}_5$. Supported by model calculations, we attribute this spin-density wave instability to a magnetic-impurity driven condensation of the spin excitons that form inside the unconventional superconducting state.

References in corpus (30)

• Superconductivity in Iron Compounds
• A Common Thread: the pairing interaction for the unconventional superconductors
• Antiferromagnetic Order Induced by an Applied Magnetic Field in a High-Temperature Superconductor
• Hidden Magnetism and Quantum Criticality in the Heavy Fermion Superconductor CeRhIn5
• The effect of collective spin-1 excitations on electronic spectra in high-Tc superconductors
• Spin resonance in the d-wave superconductor CeCoIn5
• Spin ordering quantum transitions of superconductors in a magnetic field
• Visualizing Nodal Heavy Fermion Superconductivity in CeCoIn5
• Reversible Tuning of the Heavy Fermion Ground State in CeCoIn${}_5$
• Incommensurate magnetic structure of CeRhIn5
• Universal relation between magnetic resonance and superconducting gap in unconventional superconductors
• Coexistence of antiferromagnetism and superconductivity in CeRhIn5 under high pressure and magnetic field
• Microscopic evidence for field-induced magnetism in CeCoIn${}_5$
• Andreev Reflection in Heavy-Fermion Superconductors and Order Parameter Symmetry in CeCoIn_5
• Intersite coupling effects in a Kondo lattice
• Coexistence of Antiferromagnetism and Superconductivity near the Quantum Criticality in Heavy Fermion Compound CeRhIn${}_5$
• Magnetic field splitting of the spin-resonance in CeCoIn5
• Electronic inhomogeneity in a Kondo lattice
• Magnetism and superconductivity in strongly correlated CeRhIn5
• Probing the nodal gap in the pressure-induced heavy fermion superconductor CeRhIn5
• Field-Induced Spin-Exciton Condensation in dx2-y2-wave Superconducting CeCoIn5
• Magnetic order in Ce0.95Nd0.05CoIn5: the Q-phase at zero magnetic field
• Composition and field tuned magnetism and superconductivity in Nd1-xCexCoIn5
• Evolution of the spin resonance in CeCoIn${}_5$ under magnetic field
• Effect of nodes, ellipticity and impurities on the spin resonance in Iron-based superconductors
• Impurity-induced antiferromagnetic order in Pauli-limited nodal superconductors: application to heavy fermion CeCoIn5
• Robustness of quantum critical pairing against disorder
• Ising incommensurate spin resonance of CeCoIn${}_5$: a dynamical precursor of the Q-phase
• Unusual Kondo-hole effect and crystal-field frustration in Nd-doped CeRhIn${}_5$
• Field-induced quantum critical point and nodal superconductivity in the heavy-fermion superconductor Ce2PdIn8

Cited by in corpus (9)

• Non-monotonic pressure dependence of high-field nematicity and magnetism in CeRhIn${}_5$
• Kinetic approach to superconductivity hidden behind a competing order
• Induced spin-triplet pairing in the coexistence state of antiferromagnetism and singlet superconductivity: collective modes and microscopic properties
• Thermodynamic signatures of an antiferromagnetic quantum critical point inside a superconducting dome
• Evolution of Magnetic Order from the Localized to the Itinerant Limit
• Magnetoelectric effect in dipolar clusters
• Impurity-induced magnetic droplet in unconventional superconductors near magnetic instability: Application to Nd doped $\mathbf{CeCoI}{\mathbf{n}}_5$
• Hot-lines topology and the fate of the spin resonance mode in three-dimensional unconventional superconductors
• Magnetic field tuned superconducting and normal phase magnetism in CeCo${}_{0.5}$Rh${}_{0.5}$In${}_5$