276 citations · 391 across the 4 of their papers we have counts for
4 papers
Femtosecond study of A1g phonons in the strong 3D topological insulators: From pump-probe to coherent control
Jianbo Hu, Kyushiro Igarashi, Takao Sasagawa +2
Fully symmetric A1g phonons are expected to play a dominant role in electron scattering in strong topological insulators (TIs), thus limiting the ballistic transport of future elec…
Observation of Zeeman effect in topological surface state with distinct material dependence
Ying-Shuang Fu, T. Hanaguri, K. Igarashi +3
The helical Dirac fermions on the surface of topological insulators host novel relativistic quantum phenomena in solids. Manipulating spins of topological surface state (TSS) repre…
Imaging two-component nature of Dirac-Landau levels in the topological surface state of Bi2Se3
Ying-Shuang Fu, M. Kawamura, K. Igarashi +3
Massless Dirac electrons in condensed matter have attracted considerable attention. Unlike conventional electrons, Dirac electrons are described in the form of two-component wave f…
Momentum-Resolved Landau-Level Spectroscopy of Dirac Surface State in Bi2Se3
T. Hanaguri, K. Igarashi, M. Kawamura +2
We investigate Dirac fermions on the surface of the topological insulator Bi2Se3 using scanning tunneling spectroscopy. Landau levels (LLs) are observed in the tunneling spectra in…