Fig. 1 | Nature Communications

Fig. 1

From: Observation of ultrahigh mobility surface states in a topological crystalline insulator by infrared spectroscopy

Fig. 1

IR spectra of Pb1−x Sn x Se (x = 0.23–0.25) in zero magnetic field. a Schematic band structure of the SS and the surface Brillouin zone. b IR reflectance spectrum R(ω) at T = 8 K. c The real part of the optical conductivity σ 1(ω) at T = 8 K. The vertical dashed line around 100 meV indicates E inter. The inset shows a schematic of the band structure of the bulk states and the onset of inter-band transitions at E inter

Back to article page