Field-induced spin-density wave beyond hidden order in URu2Si2

Abstract

URu2Si2 is one of the most enigmatic strongly-correlated-electron systems and offers a fertile testing ground for new concepts in condensed matter science. In spite of >30 years of intense research, no consensus on the order parameter of its low-temperature hidden-order phase exists. A strong magnetic field transforms the hidden order into magnetically-ordered phases, whose order parameter has also been defying experimental observation. Here, thanks to an instrumentation breakthrough in high-field neutron scattering, we identify the field-induced phases of URu2Si2 as a spin-density-wave state with wavevector k1 = (0.6 0 0). The transition to the spin-density wave represents a unique touchstone for understanding the hidden-order phase. An intimate relationship between this magnetic structure, the magnetic fluctuations, and the Fermi surface is emphasized, calling for dedicated band structure calculations.

22 pages, 4 Figures + supplementary information (3 pages, 1 table)

References in corpus (15)

• Lattice symmetry breaking in cuprate superconductors: Stripes, nematics, and superconductivity
• Rotational Symmetry Breaking in the Hidden-Order Phase of URu2Si2
• Exotic Superconducting Properties in the Electron-Hole Compensated Heavy Fermion `Semimetal' URu2Si2
• Emergent Rank-5 'Nematic' Order in URu2Si2
• Fermi surface instability at the hidden-order transition of URu2Si2
• Field tunable spin density wave phases in Sr3Ru2O7
• Antiferromagnetic criticality at a heavy-fermion quantum phase transition
• Heavy fermions in high magnetic field
• Direct observation of lattice symmetry breaking at the hidden-order transition in URu2Si2
• Neutron Scattering Study on Competition between Hidden Order and Antiferromagnetism in U(Ru_{1-x}Rh_x)_2Si_2 (x <= 0.05)
• Neutron scattering studies on URu2Si2
• Pressure dependence of the magnetization of URu2Si2
• High-Field Fermi Surface Properties in the Low Carrier Heavy Fermion Compound URu2Si2
• Multipole order and global/site symmetry in the hidden order phase of URu2Si2
• Angular Dependence of the High-Magnetic-Field Phase Diagram of URu2Si2

Cited by in corpus (6)

• Hidden order and beyond: an experimental-theoretical overview of the multifaceted behavior of URu${}_2$Si${}_2$
• Pressure-Induced Rotational Symmetry Breaking in URu${}_2$Si${}_2$
• Electronic properties of a heavy-fermion U(Ru0.92Rh0.08)2Si2 single crystal
• Magnetic structure in U(Ru0.92Rh0.08)2Si2 single crystal studied by neutron diffraction in static magnetic fields up to 24 T
• Field-induced phases in a heavy-fermion U(Ru${}_{0.92}$Rh${}_{0.08}$)${}_2$Si${}_2$ single crystal
• Magnetic-field-controlled spin fluctuations and quantum criticality in Sr3Ru2O7