materialdb - Materials Database¶

`air`	Empty layer
`water`	Description of a solid block of material.
`H2O`	Description of a solid block of material.
`heavywater`	Description of a solid block of material.
`D2O`	Description of a solid block of material.
`lightheavywater`	Description of a solid block of material.
`DHO`	Description of a solid block of material.
`silicon`	Description of a solid block of material.
`Si`	Description of a solid block of material.
`sapphire`	Description of a solid block of material.
`Al2O3`	Description of a solid block of material.
`gold`	Description of a solid block of material.
`Au`	Description of a solid block of material.
`permalloy`	Description of a solid block of material.
`Ni8Fe2`	Description of a solid block of material.

Common materials in reflectometry experiments along with densities.

By name:

air, water, heavywater, lightheavywater, silicon, sapphire, gold
permalloy

By formula:

H2O, D2O, DHO, Si, Al2O3, Au, Ni8Fe2

If you want to adjust the density you will need to make your own copy of these materials. For example, for permalloy:

>>> NiFe=Material(permalloy.formula, density=permalloy.bulk_density)
>>> NiFe.density.pmp(10)  # Let density vary by 10% from bulk value
Parameter(permalloy density)