Abstract
Summary In the past decade, the investigation of the electronic structures of topological quantum materials (TQMs) has not only provided important insights for fundamental science research but has also laid a solid foundation for designing and fabricating novel functional devices. Angle-resolved photoemission spectroscopy (ARPES), with its capability of directly visualizing the electronic structures of crystals in momentum space, has played a critical role in discovering and understanding many TQMs. On the other hand, the ARPES technique has also been greatly improved—including the much enhanced energy and momentum resolutions, and the importation of new detection degrees of freedom—which in turn further advanced the research on TQMs. In this review, we first give a brief introduction to the principle of ARPES, then focus on its application in different TQMs; we also review some recent advances in ARPES techniques with their representative applications in TQMs and finally present a brief perspective.
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