AlterSeeK-Path

General-k band paths for altermagnets

Upload a collinear magnetic structure, or open an example below. AlterSeeK-Path adds a general k point k and its spin-flip partner k′ to the standard high-symmetry path, and returns the k-point file for VASP, Quantum ESPRESSO or ABINIT, with the Brillouin-zone figures.

Only the signs matter in practice: 1 -1 and 5 -5 give the same result. Give symmetry-equivalent atoms the same size; 1 -5 makes them inequivalent (a ferrimagnet). VASP MAGMOM style, in the atom order of the file: 4*0 means four zeros, atoms left out are 0. Example: MnF2 with atoms Mn Mn F F F F → 1 -1 4*0.

Cartesian. Any direction gives the same result: the spins are collinear and spin-orbit coupling is not included.

Dimension

Examples

MnF2: IBZ and its spin-flip image MnF2 3D bulk · tetragonal GdAuGe: IBZ and its spin-flip image GdAuGe 3D bulk · hexagonal V2Se2O: IBZ and its spin-flip image V2Se2O 2D slab · square