collaborators

5 papers

cond-mat.mes-hall2024

Moiré superlattices of antimonene on a Bi(111) substrate with van Hove singularity and Rashba-type spin polarization

Tomonori Nakamura, Yitao Chen, Ryohei Nemoto +9

Moiré superlattices consisting of two-dimensional materials have attracted immense attention because of emergent phenomena such as flat band-induced Mott insulating states and unco…

cond-mat.mtrl-sci2023

Photoemission angular distribution beyond the single wavevector description of photoelectron final states

Hiroaki Tanaka, Shota Okazaki, Yuto Fukushima +9

We develop a simulation procedure for angle-resolved photoemission spectroscopy (ARPES), where a photoelectron wave function is set to be an outgoing plane wave in a vacuum associa…

cond-mat.mtrl-sci2023

Broken Screw Rotational Symmetry in the Near-Surface Electronic Structure of -Stacked Crystals

Hiroaki Tanaka, Shota Okazaki, Masaru Kobayashi +10

We investigate the electronic structure of - and - by angle-resolved photoemission spectroscopy (ARPES) and photoemission intensity cal…

cond-mat.mtrl-sci2023

Time-, spin-, and angle-resolved photoemission spectroscopy with a 1-MHz 10.7-eV pulse laser

Kaishu Kawaguchi, Kenta Kuroda, Z. Zhao +12

We describe a setup of time-, spin-, and angle-resolved photoemission spectroscopy (tr-SARPES) employing a 10.7-eV (=115.6 nm) pulse laser at 1-MHz repetition rate as a probe ph…

cond-mat.mtrl-sci2023

Spin-polarized saddle points in the topological surface states of the elemental Bismuth revealed by a pump-probe spin-resolved ARPES

Yuto Fukushima, Kaishu Kawaguchi, Kenta Kuroda +11

We use a pump-probe, spin-, and angle-resolved photoemission spectroscopy (ARPES) with a 10.7 eV laser accessible up to the Brillouin zone edge, and reveal for the first time the e…