SemiInfinite¶

class sisl.physics.SemiInfinite(spgeom, infinite, eta=1e-06, bloch=None)[source]¶

Self-energy object able to calculate the dense self-energy for a given SparseGeometry in a semi-infinite chain.

Parameters:

spgeom : SparseGeometry: any sparse geometry matrix which may return matrices
infinite : str: axis specification for the semi-infinite direction (+A/-A/+B/-B/+C/-C)
eta : float, optional: the default imaginary part of the self-energy calculation
bloch : array_like, optional: Bloch-expansion for each of the lattice vectors (1 for no expansion) The resulting self-energy will have dimension equal to len(obj) * np.product(bloch).

Methods

`__init__`(spgeom, infinite[, eta, bloch])	Create a `SelfEnergy` object from any SparseGeometry
`self_energy`(E[, k])