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Observation of Dirac-like energy band and unusual spectral line shape in quasi-one-dimensional superconductor Tl2Mo6Se6
Kosuke Nakayama, Zhiwei Wang, Chi Xuan Trang +5
We have performed high-resolution angle-resolved photoemission spectroscopy of the quasi-one-dimensional (1D) topological superconductor candidate Tl2Mo6Se6 consisting of weakly-co…
Observation of band crossings protected by nonsymmorphic symmetry in the layered ternary telluride Ta3SiTe6
Takafumi Sato, Zhiwei Wang, Kosuke Nakayama +8
We have performed angle-resolved photoemission spectroscopy of layered ternary telluride Ta3SiTe6 which is predicted to host nodal lines associated with nonsymmorphic crystal symme…
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…