Figure 14
The heat map of two-dimensional lattices from crystal structures in the CSD on the northern hemisphere. The radial distance is the latitude φ ∈ [0°, 90°]. Top: all N = 2 191 887 lattices with sign(Λ) ≥ 0, φ ≥ 0. Bottom: all N = 741 105 oblique lattices with sign(Λ) > 0, φ > 0. |