Fig. 1: Crystal structure and characterization of KHgAs under ambient pressure.
From: Pressure-induced superconductivity in the nonsymmorphic topological insulator KHgAs
a Crystal structures of KHgAs from the side view and top view. b X-ray diffraction pattern of a KHgAs single crystal along the c-axis. The inset shows a photograph of the KHgAs single crystals. c Energy-dispersive X-ray (EDX) spectroscopy collected on a KHgAs single crystal. The inset shows the scanning electron microscope image of the KHgAs single crystal. d Temperature dependence of resistivity for the KHgAs single crystal at ambient pressure. The inset shows the curve of ln(ρ) versus 1/T and its linear fitting.
