Fig. 4: Phase change from α-to β-In2Se3.
From: Probing and manipulating the Mexican hat-shaped valence band of In2Se3
a ARPES constant energy slices showing the transition from α to β following an annealing at temperatures Ta above 180 °C. The insets show the side view of the single layer for the α and β phases. All measurements were conducted at room temperature. b Colour plot of the electron energy (in eV) versus k-vectors, as determined by ARPES for bulk β-In2Se3. Energies (in eV) are referenced to the Fermi level. c ARPES data for bulk β-In2Se3 taken along high symmetry directions.
