Figure 1: Quasi-one-dimensional crystal and electronic structures in Na2−δMo6Se6. | Nature Communications

Figure 1: Quasi-one-dimensional crystal and electronic structures in Na2−δMo6Se6.

From: A disorder-enhanced quasi-one-dimensional superconductor

Figure 1

(a) Hexagonal crystal structure of Na2−δMo6Se6, viewed perpendicular and parallel to the c-axis. From synchrotron X-ray diffraction experiments, we measure the a- and c-axis lattice parameters to be 8.65 Å and 4.49 Å, respectively at 293 K (Supplementary Note II). (b) Electron micrograph of a typical Na2−δMo6Se6 crystal. Scale bar, 300 μm. (c) Calculated energy-momentum dispersion of the conduction band within the hexagonal Brillouin zone, highlighting the large bandwidth and minimal dispersion perpendicular to the chain axis. (d) Electronic density of states N(E) around the Fermi level in Na2Mo6Se6.

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