295 citations · 398 across the 5 of their papers we have counts for
4 papers · 1 filter
Surface-state Coulomb repulsion accelerates a metal-insulator transition in topological semimetal nanofilms
S. Ito, M. Arita, J. Haruyama +11
The emergence of quantization at the nanoscale, the quantum size effect (QSE), allows flexible control of matter and is a rich source of advanced functionalities. A QSE-induced tra…
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…
Discovery of two-dimensional Dirac nodal line fermions in monolayer Cu2Si
Baojie Feng, Botao Fu, Shusuke Kasamatsu +18
Topological nodal line semimetals, a novel quantum state of materials, possess topologically nontrivial valence and conduction bands that touch at a line near the Fermi level. The…
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…