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)—an experimental technique based
on the photoelectric effect—is arguably the most powerful method for probing the electronic …

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

Spin-momentum coupling, which depends strongly on the relativistic effect of heavy
elements in solids, is the basis of many phenomena in spintronics. In this Letter, we …

Topological materials and unconventional iron-based superconductors are both important
areas of study but, to date, relatively little overlap has been identified between these two …

Plasmonics is a rapidly developing field at the boundary of physical optics and condensed
matter physics. It studies phenomena induced by and associated with surface plasmons …

In the last decade, there has been a proliferation of laser sources for time-and angle-
resolved photoemission spectroscopy (TR-ARPES), building on the proven capability of this …

Using angle-resolved photoelectron spectroscopy (ARPES), we investigate the surface
electronic structure of the magnetic van der Waals compounds MnBi 4 Te 7 and MnBi 6 Te …

Despite the rapid progress in understanding the first intrinsic magnetic topological insulator
MnBi 2 Te 4, its electronic structure remains a topic under debates. Here we perform a …

The past decade has witnessed the rise of low-dimensional materials, such as graphene,
transition metal dichalcogenides, black phosphorus, organic–inorganic hybrid perovskites …