Spin liquids are collective phases of quantum matter that have eluded discovery in
correlated magnetic materials for over half a century. Theoretical models of these enigmatic …

The fact that ordered materials are rarely perfectly crystalline is widely acknowledged
among materials scientists, but its impact is often overlooked or underestimated when …

In this review, we provide an introduction to the physics of a series of frustrated quantum rare-
earth pyrochlores. We first give a background on the microscopic single-and two-ion physics …

Quantum spin liquids are an exciting playground for exotic physical phenomena and
emergent many-body quantum states. The realization and discovery of quantum spin liquid …

We apply moderate-high-energy inelastic neutron scattering (INS) measurements to
investigate Yb 3+ crystalline electric field (CEF) levels in the triangular spin-liquid candidate …

Crystals are a state of matter characterized by periodic order. Yet, crystalline materials can
harbour disorder in many guises, such as non-repeating variations in composition, atom …

Neutron scattering measurements on the pyrochlore magnet Ce 2 Zr 2 O 7 reveal an
unusual crystal field splitting of its lowest J= 5/2 multiplet, such that its ground-state doublet …

We review a key subset of the experimental studies that have recently focused on cubic
pyrochlore magnets whose pseudospin-1 2 degrees of freedom have mixed dipolar and …

The Kitaev honeycomb model has attracted significant attention due to its exactly solvable
spin-liquid ground state with fractionalized Majorana excitations and its possible …

We propose that in a certain class of magnetic materials, known as non-Kramers “spin ice,”
disorder induces quantum entanglement. Instead of driving glassy behavior, disorder …