T. Kawagoe et al., OPTICAL-PROPERTIES OF ULTRATHIN EPITAXIAL FE FILMS ON AG AND AU(001), Journal of magnetism and magnetic materials, 148(1-2), 1995, pp. 185-186
The complex reflectance ratio rho(lambda) of ultrathin ( < 3 nm) epita
xial Fe films on Au and Ag was measured by in-situ spectroscopic ellip
sometry. From the observed rho(lambda), the effective dielectric const
ant epsilon spectra of upper Fe layers were deduced, which turn out to
be different from those of bulk Fe.