![]() In addition, around the Brillouin zone centre, \(\) directions. In agreement with calculations, we identify type-II and type-III Dirac nodal lines and their momentum distribution in CsTi 3Bi 5 from the measured electronic structures. We directly observe a striking flat band derived from the local destructive interference of Bloch wave functions within the kagome lattice. Here, we use laser-based angle-resolved photoemission spectroscopy in combination with density functional theory calculations to investigate the electronic structure of the newly discovered kagome superconductor CsTi 3Bi 5, which is isostructural to the AV 3Sb 5 (A = K, Rb or Cs) kagome superconductor family and possesses a two-dimensional kagome network of titanium. Kagome lattices of various transition metals are versatile platforms for achieving anomalous Hall effects, unconventional charge-density wave orders and quantum spin liquid phenomena due to the strong correlations, spin-orbit coupling and/or magnetic interactions involved in such a lattice. Nature Communications volume 14, Article number: 4089 ( 2023) The recommendation is to start with the major and minor triads (meaning three-note chords). The Lesson steps then explain the 7th chord construction from this scale, and how to name the quality of each chord based on note intervals. Haitao Yang ORCID: /0000-0003-4304-9835 1, 2, 4, The Solution below shows the D-flat major scale 7th chords, (I 7, ii 7, iii 7, IV 7, V 7, vi 7, vii ΓΈ 7) on a piano, with mp3 and midi audio.Observation of flat band, Dirac nodal lines and topological surface states in Kagome superconductor CsTi 3Bi 5
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