Time-reversal symmetry (TRS) is pivotal for materials' optical, magnetic, topological, and
transport properties. Chiral phonons, characterized by atoms rotating unidirectionally around …

A thermal Hall effect occurs in an increasing number of insulators and is often attributed to
phonons, but the underlying mechanism is not known in most cases. Two main scenarios …

We present computations of the thermal Hall coefficient of phonons scattering off a defect
with multiple energy levels. Using a microscopic formulation based on the Kubo formula, we …

It has become common knowledge that phonons can generate thermal Hall effect in a wide
variety of materials, although the underlying mechanism is still controversial. We study …

Because electrons and ions form a coupled system, it is a priori clear that the dynamics of
the lattice should reflect symmetry breaking within the electronic degrees of freedom …

SrTiO3, a quantum paralectric, displays a detectable phonon thermal Hall effect (THE). Here,
we show that the amplitude of the THE is extremely sensitive to stoichiometry. It drastically …

In a growing number of materials, phonons have been found to generate a thermal Hall
effect, but the underlying mechanism remains unclear. Inspired by previous studies that …

We apply a recently developed first-principles based approach for treating generic spin-
phonon couplings in materials with strong spin-orbit coupling to study $\alpha $-RuCl $ _3 …

When time-reversal symmetry is broken, the low-energy description of acoustic lattice
dynamics allows for a dissipationless component of the viscosity tensor, the phonon Hall …

With an increasing number of experiments observing phonon thermal Hall effect in magnets,
it is theoretically desired to have a minimal model for the phonon thermal Hall effect. In this …