The physics of quantum materials is dictated by many-body interactions and mathematical
concepts such as symmetry and topology that have transformed our understanding of matter …

Angle-resolved photoemission spectroscopy (ARPES), with its exceptional sensitivity to both
the binding energy and the momentum of valence electrons in solids, provides unparalleled …

Resolving momentum degrees of freedom of excitons, which are electron-hole pairs bound
by the Coulomb attraction in a photoexcited semiconductor, has remained an elusive goal …

In the 60 years since the invention of the laser, the scientific community has developed
numerous fields of research based on these bright, coherent light sources, including the …

The triboelectric nanogenerator (TENG) offers a novel approach to harness mechanical
energy continuously and sustainably. It has emerged as a leading technology for converting …

We propose a realization of Kondo lattice physics in moiré superlattices at the interface
between a WX 2 homobilayer and Mo X 2 monolayer (X= S, Se). Under appropriate gating …

The twist degree of freedom provides a powerful new tool for engineering the electrical and
optical properties of van der Waals heterostructures. Here, we show that the twist angle can …

The dynamics of momentum-dark exciton formation in transition metal dichalcogenides is
difficult to measure experimentally, as many momentum-indirect exciton states are not …

According to the three-step model for solid high-order harmonic generation, there is a one-to-
one correspondence between the emitted photon energy and the band gap where the …

We demonstrate a novel flat-field, dual-optic imaging EUV—soft X-ray spectrometer and
monochromator that attains an unprecedented throughput efficiency exceeding 60% by …