Implications of the Measured Angular Anisotropy at the Hidden Order Transition of URu2Si2

Abstract

The heavy fermion compound URu2Si2 continues to attract great interest due to the long- unidentified nature of the hidden order that develops below 17.5K. Here we discuss the implications of an angular survey of the linear and nonlinear susceptibility of URu2Si2 in the vicinity of the hidden order transition. While the anisotropic nature of spin fluctuations and low-temperature quasiparticles was previously established, our recent results suggest that the order parameter itself has intrinsic Ising anisotropy, and that moreover this anisotropy extends far above the hidden order transition. Consistency checks and subsequent questions for future experimental and theoretical studies of hidden order are discussed.

Contributed article to SCES 2017, Prague

References in corpus (10)

• Rotational Symmetry Breaking in the Hidden-Order Phase of URu2Si2
• Hastatic Order in URu2Si2
• Chirality density wave of the 'hidden order' phase in URu${}_2$Si${}_2$
• Evidence for a nematic component to the Hidden Order parameter in URu2Si2 from differential elastoresistance measurements
• Direct observation of lattice symmetry breaking at the hidden-order transition in URu2Si2
• Cyclotron Resonance in the Hidden-Order Phase of URu2Si2
• Spectroscopic determination of the atomic f-electron symmetry underlying hidden order in URu${}_2$Si${}_2$
• Symmetry of the Excitations in the Hidden Order State of URu2Si2
• Hastatic Order in URu2Si2 : Hybridization with a Twist
• Thermodynamic Measurement of Angular Anisotropy at the Hidden Order Transition of URu${}_2$Si${}_2$

Cited by in corpus (2)

• Measurements of the NMR Knight shift tensor and nonlinear magnetization in URu${}_2$Si${}_2$
• Fermi-Surface Selective Determination of the $\mathbf{g}$-Factor Anisotropy in URu${}_2$Si${}_2$