Fig. 1: Crystal structure, transport and topographic characterizations of ScV6Sn6.
From: Phonon promoted charge density wave in topological kagome metal ScV6Sn6
a Crystal structure in the normal state showing the unit cell (i) and top view displaying the kagome lattice (ii). b Temperature-dependent ab-plane resistivity (i) and specific heat capacity (ii) of ScV6Sn6, indicating the onset of CDW near 92 K. c STM topograph of Sn2 termination measured on the sample with TCDW = 80 K at 80 K (i) and associated Fourier transform (ii). Atomic Bragg peaks are highlighted with a blue ring. d Same data as in c, but taken at 1 K. \(\sqrt{3}\times\sqrt{3}\) R30° CDW peaks are marked with a red ring. e Schematic of the bulk and surface Brillouin zones (BZs), with high-symmetry points marked. f Schematics of the in-plane folding of the surface BZ. Pristine (i) and CDW (ii) BZs are shown with blue and red lines, respectively.
