Hidden order and beyond: an experimental—theoretical overview of the multifaceted behavior of URu2Si2
This topical review describes the multitude of unconventional behaviors in the hidden order,
heavy fermion, antiferromagnetic and superconducting phases of the intermetallic …
heavy fermion, antiferromagnetic and superconducting phases of the intermetallic …
First-principles theory of magnetic multipoles in condensed matter systems
The multipole concept, which characterizes the spacial distribution of scalar and vector
objects by their angular dependence, has already become widely used in various areas of …
objects by their angular dependence, has already become widely used in various areas of …
Chirality density wave of the “hidden order” phase in URu2Si2
A second-order phase transition in a physical system is associated with the emergence of an
“order parameter” and a spontaneous symmetry breaking. The heavy fermion …
“order parameter” and a spontaneous symmetry breaking. The heavy fermion …
Quantum-well states at the surface of a heavy-fermion superconductor
Two-dimensional electronic states at surfaces are often observed in simple wide-band
metals such as Cu or Ag (refs.,,–). Confinement by closed geometries at the nanometre …
metals such as Cu or Ag (refs.,,–). Confinement by closed geometries at the nanometre …
One-component order parameter in URu2Si2 uncovered by resonant ultrasound spectroscopy and machine learning
The unusual correlated state that emerges in URu2Si2 below T HO= 17.5 K is known as
“hidden order” because even basic characteristics of the order parameter, such as its …
“hidden order” because even basic characteristics of the order parameter, such as its …
Evidence for a nematic component to the hidden-order parameter in URu2Si2 from differential elastoresistance measurements
For materials that harbour a continuous phase transition, the susceptibility of the material to
various fields can be used to understand the nature of the fluctuating order and hence the …
various fields can be used to understand the nature of the fluctuating order and hence the …
Direct bulk-sensitive probe of 5f symmetry in URu2Si2
The second-order phase transition into a hidden order phase in URu2Si2 goes along with
an order parameter that is still a mystery, despite 30 years of research. However, it is …
an order parameter that is still a mystery, despite 30 years of research. However, it is …
Evidence for Chiral d-Wave Superconductivity in URu2Si2 from the Field-Angle Variation of Its Specific Heat
Low-energy quasiparticle (QP) excitations in the heavy-fermion superconductor URu2Si2
were investigated by specific-heat measurements of a high-quality single crystal. The …
were investigated by specific-heat measurements of a high-quality single crystal. The …
Odd-parity electronic multipolar ordering in : Conclusions from Si and Ru NMR measurements
We report Si 29 and Ru 101 NMR measurements on high-quality, single-crystal URu 2 Si 2
samples with a residual resistivity ratio RRR∼ 70. Our results show that the Si and Ru sites …
samples with a residual resistivity ratio RRR∼ 70. Our results show that the Si and Ru sites …
Symmetry of the Excitations in the Hidden Order State of
We perform polarized electronic Raman scattering on URu 2 Si 2 single crystals at low
temperature down to 8 K in the hidden-order state and under a magnetic field up to 10 T …
temperature down to 8 K in the hidden-order state and under a magnetic field up to 10 T …