Abstract Magneto-optical (MO) effects, viz. magnetically induced changes in light intensity or
polarization upon reflection from or transmission through a magnetic sample, were …

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 …

Simulating quantum spin systems at finite temperatures is an open challenge in many-body
physics. This work studies the temperature-dependent spin dynamics of a pivotal compound …

Magnetic skyrmions are nanoscale topological textures that have been recently observed in
different families of quantum magnets. These objects are called CP1 skyrmions because …

We propose a mechanism to obtain chiral phononlike excitations from the bond-dependent
magnetoelastic couplings in the absence of out-of-plane magnetization and magnetic fields …

In ordered magnets, the elementary excitations are spin waves (magnons), which obey Bose–
Einstein statistics. Similarly to Cooper pairs in superconductors, magnons can be paired into …

We consider quantum condensed matter systems without particle-number conservation.
Since the particle number is not a good quantum number, states belonging to different …

The search for new elementary particles is one of the most basic pursuits in physics,
spanning from subatomic physics to quantum materials. Magnons are the ubiquitous …

We report on magneto-optical studies of the quasi-two-dimensional van der Waals
antiferromagnet FePS3. Our measurements reveal an excitation that closely resembles the …

Quasiparticles are physically motivated mathematical constructs for simplifying the
seemingly complicated many-body description of solids. A complete understanding of their …