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 …

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 …

The notion of non-trivial topological winding in condensed matter systems represents a
major area of present-day theoretical and experimental research. Magnetic materials offer a …

A quantum spin liquid is a state of matter where unpaired electrons' spins, although
entangled, do not show magnetic order even at the zero temperature. The realization of a …

This review is a study of how the idea of spin ice has evolved over the years, with a focus on
the scientific questions that have come to define the subject. Since our initial discovery of …

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 hallmark of highly frustrated systems is the presence of many states close in energy to
the ground state. Fluctuations between these states can preclude the emergence of any form …

Classical spin liquids (CSL) lack long-range magnetic order and are characterized by an
extensive ground-state degeneracy. We propose a classification scheme of CSLs based on …

The search for quantum spin liquids—topological magnets with fractionalized excitations—
has been a central theme in condensed matter and materials physics. Despite numerous …