Fig. 3: Mixed-dimensional Fermi surfaces of LaPt2B.
From: Large transverse thermoelectric effect induced by the mixed-dimensionality of Fermi surfaces
a Fermi surface calculated in the absence of spin-orbit coupling. Five sheets are labelled α, β, γ, δ, and ε. The color scale indicates the magnitude of the Fermi velocity vF. High symmetry points in the hexagonal lattice are also shown. The number of Fermi surfaces is doubled in the full relativistic calculations owing to the lack of inversion symmetry, and the overall shapes of the Fermi surfaces are essentially the same as those for the scalar relativistic calculations (Fig. S3). b Band-resolved partial Peltier conductivity \({\alpha }_{aa}^{n}\) (left bar) and \({\alpha }_{cc}^{n}\) (right bar) calculated at T = 300 K with a constant relaxation time τ = 10−14 s. The dashed lines represent the total Peltier conductivity for each axis direction. c–f Mixed-dimensional Fermi surfaces α and γ showing the diagonal elements of the inverse mass tensor for in-plane direction (c, d) and out-of-plane direction (e, f).
