[1P01-52] Poster Presentation

[1P36] Analysis of wavenumber-resolved photoelectron spectra of layered materials

Rena Asano¹, Kei Takahashi¹, *Kaori Niki¹ (1. Graduate School of Science and Engineering, Chiba University)

Wavenumber-resolved photoemission spectroscopy is a powerful method for studying the electronic structure of crystals. Advances in detectors have made it possible to obtain highly accurate 3D maps compared to conventional 2D maps obtained by ARPES measurements. A material design for spin-orbitronics devices with a dramatic energy-saving function is desired. Atomic-layer crystals stacked are candidates for this. Bi2Se3 is a strong topological insulator, possessing a Dirac-conical surface dispersion connecting the conducting and valence states. In this presentation, we calculated wavenumber-resolved photoemission spectra of layered materials such as Bi2Se2 and TiSe2. The initial and final states were calculated based on density functional theory (DFT), and the photoelectron intensity was calculated. At this time, boundary conditions on the surface were considered.