asymmetric film

https://doi.org/10.1351/goldbook.A00482
A @F02366@ bounded by two different bulk phases. When the bulk phases are identical the @F02366@ is described as symmetric.
Source:
PAC, 1994, 66, 1667. (Thin films including layers: terminology in relation to their preparation and characterization (IUPAC Recommendations 1994)) on page 1671 [Terms] [Paper]