Photoelectron Momentum Microscope for µm-material electronic structure visualization

The importance of characterizing electronic properties of µm- and nm-scale world cannot be overemphasized. A new experimental station for 3D momentum-resolved photoelectron spectroscopy is constructed at UVSOR synchrotron facility. Microscopy with a spatial resolution of 50 nm and photoelectron spectroscopy (field of view: 2 µm) with energy / momentum resolutions of 20 meV / 0.01 Å-1 at 9 K are successfully demonstrated. A method to directly observe the electronic structure of µm-sized materials are realized.