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 …

Chirality or handedness distinguishes an object from its mirror images, such as the spread
thumb, index finger, and middle finger of the right and left hand. In mathematics, it is …

There is great interest in finding materials possessing quasiparticles with topological
properties. Such materials may have novel excitations that exist on their boundaries which …

The nature of the pseudogap phase of cuprates remains a major puzzle,. One of its
signatures is a large negative thermal Hall conductivity, whose origin is as yet unknown …

We study a spin Hamiltonian for spin-orbit-coupled ferromagnets on the honeycomb lattice.
At sufficiently low temperatures supporting the ordered phase, the effective Hamiltonian for …

At low temperatures, the thermal conductivity of spin excitations in a magnetic insulator can
exceed that of phonons. However, because they are charge neutral, the spin waves are not …

Two-dimensional (2D) van der Waals (vdW) magnets have been a fertile playground for the
discovery and exploration of physical phenomena and new physics. In this Letter, we report …

Condensed matter systems admit topological collective excitations above a trivial ground
state, an example being Chern insulators formed by Dirac bosons with a gap at finite …

We predict that a temperature gradient can induce a magnon-mediated spin Hall response
in an antiferromagnet with nontrivial magnon Berry curvature. We develop a linear response …

The nature of the pseudogap phase of the copper oxides ('cuprates') remains a puzzle.
Although there are indications that this phase breaks various symmetries, there is no …