312 citations · 461 across the 5 of their papers we have counts for
5 papers
Unusual change in the Dirac-cone energy band upon two-step magnetic transition in CeBi
Hikaru Oinuma, Seigo Souma, Kosuke Nakayama +6
We have performed angle-resolved photoemission spectroscopy (ARPES) on CeBi which undergoes a two-step antiferromagnetic (AF) transition with temperature. Soft-x-ray ARPES has reve…
Evidence for bulk nodal loops and universality of Dirac-node arc surface states in ZrGeXc (Xc = S, Se, Te)
Takechika Nakamura, Seigo Souma, Zhiwei Wang +10
We have performed angle-resolved photoemission spectroscopy (ARPES) on layered ternary compounds ZrGeXc (Xc = S, Se, and Te) with square Ge lattices. ARPES measurements with bulk-s…
Observation of Chiral Fermions with a Large Topological Charge and and Associated Fermi-Arc Surface States in CoSi
Daichi Takane, Zhiwei Wang, Seigo Souma +12
Topological semimetals materialize a new state of quantum matter where massless fermions protected by a specific crystal symmetry host exotic quantum phenomena. Distinct from well-…
Observation of a Dirac nodal line in AlB2
Daichi Takane, Seigo Souma, Kosuke Nakayama +8
We have performed angle-resolved photoemission spectroscopy of AlB2 which is isostructural to high-temperature superconductor MgB2. Using soft-x-ray photons, we accurately determin…
Three-dimensional band structure of LaSb and CeSb:Absence of band inversion
H. Oinuma, S. Souma, D. Takane +9
We have performed angle-resolved photoemission spectroscopy (ARPES) of LaSb and CeSb, a candidate of topological insulator. Using soft-x-ray photons, we have accurately determined…