473 citations · 873 across the 15 of their papers we have counts for
15 papers
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…
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…
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…
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…
Two-dimensional superconductivity of the Ca-intercalated graphene on SiC: vital role of the interface between monolayer graphene and the substrate
Haruko Toyama, Ryota Akiyama, Satoru Ichinokura +10
Ca-intercalation has opened a way for superconductivity in graphene on SiC. However, the atomic and electronic structures being critical for superconductivity are still under discu…
Formation of graphene nanoribbons on the macrofacets of vicinal 6H-SiC(0001) surfaces
Kohei Fukuma, Anton Visikovskiy, Takushi Iimori +2
Thermal decomposition of vicinal 6H-SiC(0001) surfaces with off-angles toward the direction results in the appearance of pairs of (0001) macroterraces and $(1\bar{1}…
Scaling law for the Rashba-type spin splitting in quantum well films
Ryo Noguchi, Kenta Kuroda, Mitsuaki Kawamura +7
We use laser-based spin- and angle-resolved photoemission spectroscopy (laser-SARPES) with high-resolution, and experimentally determine, for the first time, the Rashba-parameters…
Twisted bilayer graphene fabricated by direct bonding in a high vacuum
Hitoshi Imamura, Anton Visikovskiy, Ryosuke Uotani +10
Twisted bilayer graphene (TBG), in which two monolayer graphene are stacked with an in-plane rotation angle, has recently become a hot topic due to unique electronic structures. TB…
Ultrafast unbalanced electron distributions in quasicrystalline 30° twisted bilayer graphene
T. Suzuki, T. Iimori, S. J. Ahn +15
Layers of twisted bilayer graphene exhibit varieties of exotic quantum phenomena1-5. Today, the twist angle Θ has become an important degree of freedom for exploring novel states o…
Alkali-metal induced band structure deformation investigated by angle-resolved photoemission spectroscopy and first-principles calculations
S. Ito, B. Feng, M. Arita +10
Alkali-metal adsorption on the surface of materials is widely used for in situ surface electron doping, particularly for observing unoccupied band structures by angle-resolved phot…
Dirac fermions in borophene
Baojie Feng, Osamu Sugino, Ro-Ya Liu +14
Honeycomb structures of group IV elements can host massless Dirac fermions with non-trivial Berry phases. Their potential for electronic applications has attracted great interest a…
Proving Nontrivial Topology of Pure Bismuth by Quantum Confinement
S. Ito, B. Feng, M. Arita +13
The topology of pure Bi is controversial because of its very small (10 meV) band gap. Here we perform high-resolution angle-resolved photoelectron spectroscopy measurements s…
Direct Evidence of Metallic Bands in a Monolayer Boron Sheet
Baojie Feng, Jin Zhang, Ro-Ya Liu +8
The search for metallic boron allotropes has attracted great attention in the past decades and recent theoretical works predict the existence of metallicity in monolayer boron. Her…
Graphene nanoribbons on vicinal SiC surfaces by molecular beam epitaxy
Takashi Kajiwara, Yuzuru Nakamori, Anton Visikovskiy +5
We present a new method of producing a densely ordered array of epitaxial graphene nanoribbons (GNRs) using vicinal SiC surfaces as a template, which consist of ordered pairs of (0…
STM observation of initial growth of Sn atoms on Ge(001) surface
K. Tomatsu, K. Nakatsuji, T. Iimori +1
We have studied initial growth of Sn atoms on Ge(001) surfaces at room temperature and 80 K by scanning tunneling microscopy. For Sn deposition onto the Ge(001) substrate at room t…