Intermetallic compounds containing f-electron elements display a wealth of superconducting
phases, which are prime candidates for unconventional pairing with complex order …

This Colloquium reviews the 25 year quest to understand the continuous (second-order),
mean-field-like phase transition occurring at 17.5 K in URu 2 Si 2. About ten years ago, the …

National user facilities such as the NIST Center for Neutron Research (NCNR) require a
significant base of software to treat the data produced by their specialized measurement …

The Horace suite of programs has been developed to work with large multiple-measurement
data sets collected from time-of-flight neutron spectrometers equipped with arrays of position …

This article reviews the physics of multipolar interactions and multipolar order in f-electron
systems, using the actinide dioxides as a paradigm. In the past few years, these apparently …

Spin-triplet superconductors are of extensive current interest because they can host
topological state and Majorana fermions important for quantum computation. The uranium …

A second-order phase transition is characterized by spontaneous symmetry breaking. The
nature of the broken symmetry in the so-called “hidden-order” phase transition in the heavy …

Within a Kondo lattice, the strong hybridization between electrons localized in real space (r-
space) and those delocalized in momentum-space (k-space) generates exotic electronic …

The origin of unconventional superconductivity, including high-temperature and heavy-
fermion superconductivity, is still a matter of controversy. Spin excitations instead of phonons …

Complex electronic matter shows subtle forms of self-organization, which are almost
invisible to the available experimental tools. One prominent example is provided by the …