Fig. 2: Crystal structure and experimentally-observed Fermi surface.
From: Atomic-layer Rashba-type superconductor protected by dynamic spin-momentum locking
a Top view (left) and side view (right) of the crystal structure of \(\sqrt{7}\times \sqrt{3}\)-In. The x, y, and z axes are defined to be \([1\bar{1}0]\), \([11\bar{2}]\), and [111] directions, respectively. b Schematic of the 1st and 2nd Brillouin zones. The dashed box represents the area of the photoelectron intensity map in (c). The characteristic arc feature and butterfly-wing feature of the Fermi surface are depicted. c Photoelectron intensity map at EF. The arrows indicate the portions of the Fermi surface with a clear splitting.
