Fermi surface instability at the hidden-order transition of URu2Si2

Abstract

Solids with strong electron correlations generally develop exotic phases of electron matter at low temperatures. Among such systems, the heavy-fermion semi-metal URu2Si2 presents an enigmatic transition at To = 17.5 K to a `hidden order' state whose order parameter remains unknown after 23 years of intense research. Various experiments point to the reconstruction and partial gapping of the Fermi surface when the hidden-order establishes. However, up to now, the question of how this transition affects the electronic spectrum at the Fermi surface has not been directly addressed by a spectroscopic probe. Here we show, using angle-resolved photoemission spectroscopy, that a band of heavy quasi-particles drops below the Fermi level upon the transition to the hidden-order state. Our data provide the first direct evidence of a large reorganization of the electronic structure across the Fermi surface of URu2Si2 occurring during this transition, and unveil a new kind of Fermi-surface instability in correlated electron systems

15 pages, 5 figures

References in corpus (13)

• Hidden Orbital Order in $UR{u}_{2}S{i}_2$
• Exotic Superconducting Properties in the Electron-Hole Compensated Heavy Fermion `Semimetal' URu2Si2
• Gapped itinerant spin excitations account for missing entropy in the hidden order state of URu${}_2$Si${}_2$
• Orbital ordering phenomena in $d$- and $f$-electron systems
• Nernst effect in semi-metals: the meritorious heaviness of electrons
• Thermal transport in the hidden-order state of URu${}_2$Si${}_2$
• High Resolution Photoemission Study on Low-T_K Ce Systems: Kondo Resonance, Crystal Field Structures, and their Temperature Dependence
• Evolution of the Fermi Surface across a Magnetic Order-Disorder Transition in the Two-Dimensional Kondo Lattice Model: A Dynamical Cluster Approach
• Incommensurate spin resonance in URu2Si2
• Sleuthing Hidden Order
• Itinerant spin excitations near the hidden order transition in URu2Si2
• Itinerancy and Hidden Order in $UR{u}_{2}S{i}_2$
• A signature of hidden order in URu2Si2 : the excitation at the wavevector Q0 = (100)

Cited by in corpus (81)

• Electronic structure of quantum materials studied by angle-resolved photoemission spectroscopy
• 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
• Hastatic Order in URu2Si2
• 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${}_2$
• Hidden Order Behaviour in URu2Si2 (A Critical Review of the Status of Hidden Order in 2014)
• Electronic structure theory of the hidden order material URu${}_2$Si${}_2$
• Spin nematic state as a candidate of the hidden order phase of URu${}_2$Si${}_2$
• Observation of the hybridization gap and Fano resonance in the Kondo lattice URu2Si2
• Hybridization wave as the 'Hidden Order' in URu${}_2$Si${}_2$
• Photoemission Imaging of 3D Fermi Surface Pairing at the Hidden Order Transition in URu2Si2
• Heavy fermions in high magnetic field
• Emergent states in heavy electron materials
• The modulated spin liquid: a new paradigm for URu${}_2$Si${}_2$
• Evidence for a nematic component to the Hidden Order parameter in URu2Si2 from differential elastoresistance measurements
• Unveiling Hidden Orders: Magnetostriction as a Probe of Multipolar-Ordered States
• Hidden and antiferromagnetic order as a rank-5 superspin in URu2Si2
• Cyclotron Resonance in the Hidden-Order Phase of URu2Si2
• Optical spectroscopy shows that the normal state of URu${}_2$Si${}_2$ is an anomalous Fermi liquid
• Superconductivity in Ce- and U-based "122" heavy-fermion compounds
• Spin and orbital hybridization at specifically nested Fermi surfaces in URu${}_2$Si${}_2$
• Strong ferromagnetism at the surface of an antiferromagnet caused by buried magnetic moments
• Momentum-resolved evolution of the Kondo lattice into 'hidden-order' in URu2Si2
• How Kondo Holes Create Intense Nanoscale Heavy-Fermion Hybridization Disorder
• Details of Sample Dependence and Transport Properties of URu2Si2
• Electronic Structure of Heavy Fermion Uranium Compounds Studied by Core-Level Photoelectron Spectroscopy
• Formation of the coherent heavy fermion liquid at the 'hidden order' transition in URu2Si2
• Anomalous Femtosecond Quasiparticle Dynamics of Hidden Order State in URu${}_2$Si${}_2$
• The thermopower as a signature of quantum criticality in heavy fermions
• Field-induced spin-density wave beyond hidden order in URu2Si2
• Dual nature of 5$f$ electrons in the isostructural UM${}_2$Si${}_2$ family: from antiferro- to Pauli paramagnetism via hidden order
• Signatures of hidden order symmetry in torque oscillations, elastic constant anomalies and field induced moments in URu2Si2
• Spin-orbit density wave induced hidden topological order in URu2Si2
• 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
• Interplay of magnetism, Fermi surface reconstructions, and hidden-order in the heavy-fermion material URu${}_2$Si${}_2$
• Symmetry of the Excitations in the Hidden Order State of URu2Si2
• Hybridization gap and anisotropic far-infrared optical conductivity of URu2Si2
• Interplay of Dirac fermions and heavy quasiparticles in solids
• Hastatic Order in URu2Si2 : Hybridization with a Twist
• Anisotropic inelastic scattering and its interplay with superconductivity in URu${}_2$Si${}_2$
• Visualizing the atomic-scale origin of metallic behavior in Kondo insulators
• Quantum-well states at the surface of the heavy-fermion superconductor URu${}_2$Si${}_2$
• Absence of a static in-plane magnetic moment in the "hidden-order" phase of URu${}_2$Si${}_2$
• Fermi Surface Nesting with Heavy Quasiparticles in the Locally Noncentrosymmetric Superconductor CeRh${}_2$As${}_2$
• Antiferromagnetism and Hidden Order in Isoelectronic Doping of URu${}_2$Si${}_2$
• Advances in actinide thin films: synthesis, properties, and future directions
• Pressure-Induced Rotational Symmetry Breaking in URu${}_2$Si${}_2$
• Pressure-Tuned Point-Contact Spectroscopy of URu2Si2 from Hidden Order to Antiferromagnetic States: Similarity of the Fermi Surface Gapping
• Fermi Surface Reconstruction inside the Hidden Order Phase of URu2Si2 Probed by Thermoelectric Measurements
• High-magnetic field lattice length changes in URu2Si2
• Isoelectronic perturbations to $f$-$d$-electron hybridization and the enhancement of hidden order in URu${}_2$Si${}_2$
• Observation of Multiple-Gap Structure in Hidden Order State of URu2Si2 from Optical Conductivity
• Imprints of spin-orbit density wave in the hidden order state of URu2Si2
• ARPES/STM study of the surface terminations and 5$f$-electron character in URu${}_2$Si${}_2$
• Optical conductivity of URu${}_2$Si${}_2$ in the Kondo Liquid and Hidden-Order Phases
• Cyclotron resonance study of quasiparticle mass and scattering rate in the hidden-order and superconducting phases of URu2Si2
• Signatures of hidden octupolar order from nonlinear Hall effects
• Detailed optical spectroscopy of the hybridization gap and the hidden order transition in high quality URu${}_2$Si${}_2$ single crystals
• Local suppression of the hidden order phase by impurities in URu2Si2
• Trends in Heavy Fermion Matter
• Electronic structure of ThRu2Si2 studied by angle-resolved photoelectron spectroscopy: Elucidating the contribution of U 5f states in URu2Si2
• Fermi surface in the hidden-order state of URu${}_2$Si${}_2$ under intense pulsed magnetic fields up to 81~T
• Fermi-Surface Selective Determination of the $\mathbf{g}$-Factor Anisotropy in URu${}_2$Si${}_2$
• Modulated Spin Liquid and Magnetic Order from a Kondo-Heisenberg model applied to $UR{u}_{2}S{i}_2$
• Electrodynamics of the antiferromagnetic phase in URu${}_2$Si${}_2$
• Quantum Criticality and Novel Phases: Summary and Outlook
• From hidden-order to antiferromagnetism: electronic structure changes in Fe-doped URu${}_2$Si${}_2$
• Magnetic-field-induced chiral hidden order in URu2Si2
• Global perspectives of the bulk electronic structure of URu${}_2$Si${}_2$ from angle-resolved photoemission
• Optical study of hybridization and hidden order in URu${}_2$Si${}_2$
• URu${}_2$Si${}_2$ under intense magnetic fields: from hidden order to spin-density wave
• Spin-orbit density wave: A new phase of matter applicable to the hidden order state of URu2Si2
• Universal behavior in the Nernst effect of heavy fermion materials
• Quantized electronic fine structure with large anisotropy in ferromagnetic Fe films
• One-dimensional moire charge density wave in the hidden order state of URu2Si2 induced by fracture
• Collinear antiferromagnetic order in URu${}_2$Si${}_{2-x}$P${}_x$ revealed by neutron diffraction
• Inelastic contribution of the resistivity in the hidden order in URu2Si2