We calculate the extremal cross-sectional areas and cyclotron masses for Fermi-surface pockets in Dirac Weyl topological semimetals. The calculation is carried out most general form of electron energy bands vicinity points. Using obtained formulas, one can find parameters characterizing electrons semimetals from appropriate experimental data. As an example, we consider W1 TaAs.

We investigate the optical activity of tilted nodal loop semimetals. calculate full conductivity matrix for a band structure containing with possible tilt in $x-y$ plane, which allows us to study Kerr rotation and ellipticity both thin film bulk material. find signatures signal that give direct information about velocity direction, radius internal chemical potential system. These findings shoul...

Three-dimensional topological gapless phases have attracted significant attention due to their unique electronic properties. A flagship example is Weyl semimetals, which require breaking time-reversal or inversion symmetry. In two dimensions, the dimensionality reduction requires imposing an additional symmetry, thereby weakening phase. Like its three-dimensional counterpart, these ``two-dimens...