Extended Data Fig. 3
From: Realization of 2D metals at the ångström thickness limit

The diffraction patterns of In (a), Sn (b), and Pb (c). In addition to the diffraction spots from MoS2 (marked in red), sharp and regular diffraction spots (marked in yellow) can be recognized explicitly for In, Sn and Pb, suggesting the single crystal nature. From the diffraction patterns, we can extract that In and Sn have a rectangle lattice structure, while Pb has a hexagonal lattice structure.