SOFT-X-RAY EMISSION STUDY OF FE V(001) SUPERLATTICES/

We have studied the electronic structure of the interfaces in bet Fe/V (001) superlattices (SL's) grown on MgO(001) with soft-x-ray emission spectroscopy. Two samples with different thicknesses of Fe and V were investigated: [(V)(2)/(Fe)(5)](60) and [(V)(5)/(Fe)(2)](60). The samp les were characterized by x-ray diffraction showing high-quality inter faces. Our x-ray L-emission spectra of Fe and V show that the 3d bands are considerably narrowed for the [(V)(5)/(Fe)(2)](60) SL, which is i n agreement with first-principles band-structure calculations. Superco nducting quantum interference device measurements for the [(V)(5)/(Fe) (2)](60) SL reveal that the total magnetic moment is only 0.65 mu(B) a nd the Curie temperature is about similar to 200 K, whereas the [(V)2/ (Fe)(5)](60) SL shows magnetic properties consistent with bulklike iro n layers.