Weyl semimetals are topological materials whose electron quasiparticles obey the Weyl
equation. They possess many unusual properties that may lead to new applications. This is …

Topological semimetals with vanishing gaps have been intensively investigated both
theoretically and in experiments, due to their unique electronic properties and nontrivial …

Violating Kirchhoff's radiation law plays a significant role in enhancing photonic energy
conversion efficiency and controlling radiative heat transfer at the nanoscale. Here, we …

Violating of traditional Kirchhoff's law has been a topic of active research because of the
possibilities for engineering thermal radiation. An alternative paradigm consisting of zero …

Weyl semimetals hold great promise in revolutionizing nonreciprocal optical components
due to their unique topological properties. By exhibiting nonreciprocal magneto-optical …

The polarization-independent nonreciprocal radiation is highly demanded for controlling
light-matter interactions in tailoring and enhancing radiative heat transfer. An obvious …

Polaritonic excitation and management in ultra-thin polar crystals has recently received
significant attention and holds new promise for epsilon-near-zero (ENZ) modes. However …

We investigate ultrafast dynamics of the anomalous Hall effect (AHE) in the topological
antiferromagnet Mn 3 Sn with sub-100 fs time resolution. Optical pulse excitations largely …

The giant circular photo‐galvanic effect is realized in chiral metals when illuminated by
circularly polarized light. However, the structure itself is not switchable nor is the crystal …

Approaching thermodynamic limits in light harvesting requires enabling nonreciprocal
thermal emission. The majority of previously reported nonreciprocal thermal emitters operate …