Hexagonal rare-earth manganites and ferrites are well-known improper ferroelectrics with
low-temperature antiferromagnetism/weak ferromagnetism. In recent decades, new multi …

The hexagonal RMnO3 (h-RMnO3) are multiferroic materials, which exhibit the coexistence
of a magnetic order and ferroelectricity. Their distinction is in their geometry that both results …

Improper ferroelectricity (trimerization) in the hexagonal manganites RMnO3 leads to a
network of coupled structural and magnetic vortices that induce domain wall …

We critically reexamine the problem of interatomic exchange interactions, which describe
the total energy change caused by infinitesimal rotations of spins near some equilibrium …

The thermal Hall effect in magnetic insulators has been considered a powerful method for
examining the topological nature of charge-neutral quasiparticles such as magnons. Yet …

The kamiokite Fe 2 Mo 3 O 8 is regarded as a promising material exhibiting a giant
magnetoelectric (ME) effect at the relatively high temperature T. Here, we explore this …

The breakdown of magnons, the quasiparticles of magnetic systems, has rarely been seen.
By using an inelastic neutron scattering technique, we report the observation of …

The manipulation of magnetism and valley has vital applications in multifunctional spintronic
and valleytronic devices. Coupling the valley degree of freedom of a two-dimensional (2D) …

Magnons and phonons are fundamental quasiparticles in a solid and can be coupled
together to form a hybrid quasi-particle. However, detailed experimental studies on the …

Generating a single material with multiple ferroic properties has been the hotspot of
research interest for decades. The existing studies mostly focus on the intrinsic properties of …