Energy-tunable synchrotron radiation is essential for angle-resolved photoemission spectroscopy, which is a tool imaging the electronic structure in momentum space. Recently, the 10D HRPES-I beamline of the Pohang Accelerator Laboratory has been considerably upgraded, including the optimization of energy and momentum resolutions, two- dimensional mapping, etc. Here, we provide peculiar electronic structures of 2D layered materials taken at the beamline.
