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 exactly solvable Kitaev model on the honeycomb lattice has recently received
enormous attention linked to the hope of achieving novel spin-liquid states with …

The honeycomb magnet α-RuCl3 has attracted considerable interest because it is proximate
to the Kitaev Hamiltonian whose excitations are Majoranas and vortices. The thermal Hall …

The quantum Hall effect in two-dimensional electron gases involves the flow of topologically
protected dissipationless charge currents along the edges of a sample. Integer or fractional …

A key feature of quantum spin liquids is the predicted formation of fractionalized excitations.
They are expected to produce changes in the physical response, providing a way to observe …

In the class of materials called spin liquids,–, a magnetically ordered state cannot be
attained even at millikelvin temperatures because of conflicting constraints on each spin; for …

The material α-RuCl 3 has been the subject of intense scrutiny as a potential Kitaev
quantum spin liquid, predicted to display Majorana fermions as low-energy excitations. In …

A Majorana fermion is a fermionic particle that is its own antiparticle. Since the theoretical
discovery by Ettore Majorana in 1937, the exotic particle has long been searched in particle …

The celebrated Kitaev quantum spin liquid (QSL) is the paradigmatic example of a
topological magnet with emergent excitations in the form of Majorana Fermions and gauge …

In the recent years, the thermal Hall transport has risen as an important diagnosis of the
physical properties of the elementary excitations in various quantum materials, especially …