180 citations · 595 across the 12 of their papers we have counts for
5 papers · 1 filter
Observation and control of the weak topological insulator state in ZrTe5
Peng Zhang, Ryo Noguchi, Kenta Kuroda +14
A quantum spin Hall insulator hosts topological states at the one-dimensional edge, along which backscattering by nonmagnetic impurities is strictly prohibited and dissipationless…
Material design with the van der Waals stacking of bismuth-halide chains realizing a higher-order topological insulator
Ryo Noguchi, Masaru Kobayashi, Zhanzhi Jiang +28
The van der Waals (vdW) materials with low dimensions have been extensively studied as a platform to generate exotic quantum properties. Advancing this view, a great deal of attent…
Band offset and gap tuning of tetragonal CuO-SrTiO3 heterojunctions
Giovanni Drera, Alessio Giampietri, Alfredo Febbrari +3
In this work we analyze the electronic structure at the junction between a SrTiO3 (001) single crystal and a thin tetragonal CuO layer, grown by off-axis RF-sputtering. A detailed…
Indirect to direct gap crossover in two-dimensional InSe revealed by ARPES
Matthew Hamer, Johanna Zultak, Anastasia V. Tyurnina +16
Atomically thin films of III-VI post-transition metal chalcogenides (InSe and GaSe) form an interesting class of two-dimensional semiconductor that feature strong variations of the…
Discovery of switchable weak topological insulator state in quasi-one-dimensional bismuth iodide
R. Noguchi, T. Takahashi, K. Kuroda +16
The major breakthroughs in the understanding of topological materials over the past decade were all triggered by the discovery of the Z topological insulator (TI). In three dim…