| http://www.w3.org/ns/prov#value | - A film useful in this case is a film which is higher in surface energy than that of an SiO2 film (surface energy: 605 erg/cm2), e.g. a Ta film (surface energy: 2130 erg/cm2), an Ni62-Nb38 film (surface energy: 1326 erg/cm2) or a Ta-60 at % Al film (surface energy: 1640 erg/cm2) in the case of amorphous film.
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