Distinct magnetic spectra in the hidden order and antiferromagnetic phases in URu2-xFexSi2

Abstract

We use neutron scattering to compare the magnetic excitations in the hidden order (HO) and antiferromagnetic (AFM) phases in URu2-xFexSi2 as a function of Fe concentration. The magnetic excitation spectra change significantly between x = 0.05 and x = 0.10, following the enhancement of the AFM ordered moment, in good analogy to the behavior of the parent compound under applied pressure. Prominent lattice-commensurate low-energy excitations characteristic of the HO phase vanish in the AFM phase. The magnetic scattering is dominated by strong excitations along the Brillouin zone edges, underscoring the important role of electron hybridization to both HO and AFM phases, and the similarity of the underlying electronic structure. The stability of the AFM phase is correlated with enhanced local-itinerant electron hybridization.

arXiv comment4 figures

References in corpus (26)

• Colloquium: Hidden Order, Superconductivity, and Magnetism -- The Unsolved Case of URu2Si2
• Imaging the Fano Lattice to 'Hidden Order' Transition in URu2Si2
• Visualizing the Formation of the Kondo Lattice and the Hidden Order in URu2Si2
• Effect of Pressure on Tiny Antiferromagnetic Moment in the Heavy-Electron Compound URu_2Si_2
• Gapped itinerant spin excitations account for missing entropy in the hidden order state of URu${}_2$Si${}_2$
• Similarity of Fermi Surface in the Hidden Order State and in the Antiferromagnetic State of URu2Si2
• Chirality density wave of the 'hidden order' phase in URu${}_2$Si${}_2$
• Observation of the hybridization gap and Fano resonance in the Kondo lattice URu2Si2
• Absolute cross-section normalization of magnetic neutron scattering data
• Photoemission Imaging of 3D Fermi Surface Pairing at the Hidden Order Transition in URu2Si2
• Precise study of the resonance at Q0=(1,0,0) in URu2Si2
• Antiferromagnetic critical pressure in URu2Si2 under hydrostatic conditions
• Competing Ordered Phases in URu2Si2: Hydrostatic Pressure and Re-substitution
• Momentum-resolved evolution of the Kondo lattice into 'hidden-order' in URu2Si2
• The degree of 5f electron localization in URu2Si2: electron energy-loss spectroscopy and spin-orbit sum rule analysis
• Spectroscopic determination of the atomic f-electron symmetry underlying hidden order in URu${}_2$Si${}_2$
• Symmetry and correlations underlying Hidden Order in URu2Si2
• Probing 5f-state configurations in URu2Si2 with U L3-edge resonant x-ray emission spectroscopy
• Chemical pressure tuning of URu${}_2$Si${}_2$ via isoelectronic substitution of Ru with Fe
• Symmetry of the Excitations in the Hidden Order State of URu2Si2
• Neutron scattering studies on URu2Si2
• Absence of a static in-plane magnetic moment in the "hidden-order" phase of URu${}_2$Si${}_2$
• Antiferromagnetism and Hidden Order in Isoelectronic Doping of URu${}_2$Si${}_2$
• Strict limit on in-plane ordered magnetic dipole moment in URu2Si2
• Optical conductivity of URu${}_2$Si${}_2$ in the Kondo Liquid and Hidden-Order Phases
• Electrodynamics of the antiferromagnetic phase in URu${}_2$Si${}_2$

Cited by in corpus (9)

• Symmetry of magnetic correlations in spin-triplet superconductor UTe2
• Analogy between the "Hidden Order" and the Orbital Antiferromagnetism in URu${}_{2-x}$Fe${}_x$Si${}_2$
• The Tricritical Point of the f-electron Antiferromagnet USb2 Driven by High Magnetic Fields
• Isoelectronic perturbations to $f$-$d$-electron hybridization and the enhancement of hidden order in URu${}_2$Si${}_2$
• Hidden Order Signatures in the Antiferromagnetic Phase of U(Ru${}_{1-x}$Fe${}_x$)${}_2$Si${}_2$
• From hidden-order to antiferromagnetism: electronic structure changes in Fe-doped URu${}_2$Si${}_2$
• Fe substitution in URu${}_2$Si${}_2$: singlet magnetism in an extended Doniach phase diagram
• Quasiparticle Relaxation Dynamics in URu${}_{2-x}$Fe${}_x$Si${}_2$ Single Crystals
• Ungapped magnetic excitations beyond Hidden Order in URu${}_{2-x}$Re${}_x$Si${}_2$