Fig. 4: Pressure dependence of the Fermi surface properties of graphite.
From: Tuning the BCS-BEC crossover of electron-hole pairing with pressure
a Pressure dependence of the SdH frequencies (F) of the electrons (blue) and holes (red). Insert: sketch of the Fermi surface of graphite, formed by six adjacent ellipsoid pockets (electron in blue and hole in red). b Pressure dependence of the in-plane effective cyclotron mass m* of the electrons (blue) and holes (red). c Pressure dependence of the Fermi energy of the electrons (blue) and holes (red). d Sketch of the Landau-level spectrum of graphite close to the summit of the dome. The solid curves represent the conditions at ambient pressure, while the dashed curves correspond to those under pressure. On the right, the corresponding density of states is depicted.
