Switching of the magnetic order in CeRhIn${}_{5-x}$Sn${}_x$ in the vicinity of its quantum critical point

Abstract

We report neutron diffraction experiments performed in the tetragonal antiferromagnetic heavy fermion system CeRhIn${}_{5-x}$Sn${}_x$ in its ($x$, $T$) phase diagram up to the vicinity of the critical concentration $x_c$ $\approx$ 0.40, where long range magnetic order is suppressed. The propagation vector of the magnetic structure is found to be ${\mathbf{k}}_{\mathbf{IC}}$=(1/2, 1/2, $k_l$) with $k_l$ increasing from $k_l$=0.298 to $k_l$=0.410 when $x$ increases from $x$=0 to $x$=0.26. Surprisingly, for $x$=0.30, the order has changed drastically and a commensurate antiferromagnetism with ${\mathbf{k}}_{\mathbf{C}}$=(1/2, 1/2, 0) is found. This concentration is located in the proximity of the quantum critical point where superconductivity is expected.

arXiv comment5 pages, 5 figures, submitted to Phys. Rev. B

References in corpus (14)

• Hidden Magnetism and Quantum Criticality in the Heavy Fermion Superconductor CeRhIn5
• Coexistence of antiferromagnetism and superconductivity in CeRhIn5 under high pressure and magnetic field
• Superconductivity: Exotic Commonalities in Phase and Mode
• Fermi Surface Reconstruction in CeRh${}_{1-x}$Co${}_x$In${}_5$
• Antiferromagnetism and Superconductivity in Cerium based Heavy Fermion Compounds
• Novel Coexistence of Superconductivity with Two Distinct Magnetic Orders
• Magnetic structure of CeRhIn${}_5$ under magnetic field
• Competition between unconventional superconductivity and incommensurate antiferromagnetic order in CeRh1-xCoxIn5
• Magnetic order in Ce0.95Nd0.05CoIn5: the Q-phase at zero magnetic field
• Strong Coupling between Antiferromagnetic and Superconducting Order Parameters in CeRhIn${}_5$ Studied by In-NQR Spectroscopy
• Antiferromagnetism and Superconductivity in CeRhIn${}_5$
• Change of Antiferromagnetic Structure near a Quantum Critical Point in CeRh1-xCoxIn5
• Quantum criticality in layered CeRhIn_{5-x}Sn_x compared with cubic CeIn$_{3-x}Sn_x
• Magnetic structures of non-cerium analogues of heavy-fermion Ce2RhIn8: case of Nd2RhIn8, Dy2RhIn8 and Er2RhIn8

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• Evidence for charge delocalization crossover in the quantum critical superconductor CeRhIn${}_5$
• Calculation of the magnetotransport for a spin-density-wave quantum critical theory in the presence of weak disorder
• Magnetic structure of Cd-doped CeIrIn${}_5$
• Evolution of magnetism in Pd-substituted Ce${}_2$RhIn${}_8$ single crystals
• Tuning the pressure-induced superconductivity in Pd-substituted CeRhIn5