Sleuthing Hidden Order

Abstract

Physicists have long debated whether the hidden order in URu2Si2 is itinerant or localized, and it remains inaccessible to direct external probes. Recent observation of an overdamped collective mode in this material (C. Weibe et al, Nature Physics 3, 96-100 (2007)), appears to resolve this outstanding issue.

Archival version of Nature Physics News and Views

References in corpus (4)

• Gapped itinerant spin excitations account for missing entropy in the hidden order state of URu${}_2$Si${}_2$
• Helicity Order: Hidden Order Parameter in URu${}_2$Si${}_2$
• Group theory and octupolar order in URu2Si2
• Itinerancy and Hidden Order in $UR{u}_{2}S{i}_2$

Cited by in corpus (15)

• Arrested Kondo effect and hidden order in URu_2Si_2
• Visualizing the Formation of the Kondo Lattice and the Hidden Order in URu2Si2
• Fermi surface instability at the hidden-order transition of URu2Si2
• Photoemission Imaging of 3D Fermi Surface Pairing at the Hidden Order Transition in URu2Si2
• Hybridization wave as the 'Hidden Order' in URu${}_2$Si${}_2$
• Unveiling Hidden Orders: Magnetostriction as a Probe of Multipolar-Ordered States
• Charge density wave fluctuations, heavy electrons, and superconductivity in KNi${}_2$S${}_2$
• Complex Landau Ginzburg Theory of the Hidden Order in URu_2Si_2
• Anomalous Femtosecond Quasiparticle Dynamics of Hidden Order State in URu${}_2$Si${}_2$
• Coexistence of Bound and Virtual-bound States in Shallow-core to Valence Spectroscopies
• Probing octupolar hidden order via Janus impurities
• Signatures of hidden octupolar order from nonlinear Hall effects
• Phonon-driven multipolar dynamics in a spin-orbit coupled Mott insulator
• Fate of multipolar physics in $5d^2$ double perovskites
• The Future of the Correlated Electron Problem