Fig. 4: Origin of the ultra-flat plasmon in α-Ti2O3.
From: Ultra-flat and long-lived plasmons in a strongly correlated oxide
a Orbital-resolved band structure of α-Ti2O3. The contributions from the Ti \({3d}_{{z}^{2}},{d}_{{xy}}\) and \({3d}_{{x}^{2}-{y}^{2}}\) orbitals are denoted by orange, blue and green curves, respectively. b The Bloch electron wave functions corresponding to the state 1, 2, 3, 4 at the Γ point. O point is the center of inversion symmetry. Yellow (+) and blue (−) color represent the sign of the real part of the wave functions, respectively. c The density of states (DOS) (blue solid line) and k ratio (black dotted line) as a function of energy. The height of the histogram is determined by the k ratio for energy at the center of the histogram. Source data are provided as a Source Data file.
