Lattice#

Class#

Lattice(*args[, standardize])

General 3D lattice.

`Lattice.cell`	Unit cell of the lattice.
`Lattice.a1`	First lattice vector \(\vec{a}_1\).
`Lattice.a2`	Second lattice vector \(\vec{a}_2\).
`Lattice.a3`	Third lattice vector \(\vec{a}_3\).
`Lattice.a`	Length of the first lattice vector \(\vert\vec{a}_1\vert\).
`Lattice.b`	Length of the second lattice vector \(\vert\vec{a}_2\vert\).
`Lattice.c`	Length of the third lattice vector \(\vert\vec{a}_3\vert\).
`Lattice.alpha`	Angle between second and third lattice vector.
`Lattice.beta`	Angle between first and third lattice vector.
`Lattice.gamma`	Angle between first and second lattice vector.
`Lattice.unit_cell_volume`	Volume of the unit cell.
`Lattice.parameters`	Return cell parameters.

`Lattice.conv_cell`	Conventional cell.
`Lattice.conv_a1`	First vector of the conventional cell.
`Lattice.conv_a2`	Second vector of the conventional cell.
`Lattice.conv_a3`	Third vector of the conventional cell.
`Lattice.conv_a`	Length of the first vector of the conventional cell.
`Lattice.conv_b`	Length of the second vector of the conventional cell.
`Lattice.conv_c`	Length of the third vector of the conventional cell.
`Lattice.conv_alpha`	Angle between second and third conventional lattice vector.
`Lattice.conv_beta`	Angle between first and third conventional lattice vector.
`Lattice.conv_gamma`	Angle between first and second conventional lattice vector.
`Lattice.conv_unit_cell_volume`	Volume of the conventional unit cell.
`Lattice.conv_parameters`	Return conventional cell parameters.

`Lattice.reciprocal_cell`	Reciprocal cell.
`Lattice.b1`	First reciprocal lattice vector.
`Lattice.b2`	Second reciprocal lattice vector.
`Lattice.b3`	Third reciprocal lattice vector.
`Lattice.k_a`	Length of the first reciprocal lattice vector \(\vert\vec{b}_1\vert\).
`Lattice.k_b`	Length of the second reciprocal lattice vector \(\vert\vec{b}_2\vert\).
`Lattice.k_c`	Length of the third reciprocal lattice vector \(\vert\vec{b}_3\vert\).
`Lattice.k_alpha`	Angle between second and third reciprocal lattice vector.
`Lattice.k_beta`	Angle between first and third reciprocal lattice vector.
`Lattice.k_gamma`	Angle between first and second reciprocal lattice vector.
`Lattice.reciprocal_cell_volume`	Volume of the reciprocal cell.
`Lattice.reciprocal_parameters`	Return reciprocal cell parameters.
`Lattice.kpoints`	Instance of `Kpoints` with the high symmetry points and path.

`Lattice.type`([eps_rel])	Identify the lattice type.
`Lattice.variation`	Variation of the lattice, if any.
`Lattice.name`	Human-readable name of the Bravais lattice type.
`Lattice.pearson_symbol`	Pearson symbol.
`Lattice.centring_type`	Centring type.
`Lattice.crystal_family`	Crystal family.

Epsilon parameter.