STRUCTURE AND INTERLAYER COUPLING IN CO V MULTILAYERS/

Two series of sputtered Co/V multilayers were investigated by X-ray di ffraction, ferromagnetic resonance (FMR) and magnetic measurements. Th e multilayers are found severely alloyed, resulting in two FMR peaks o f uniform mode. Spin-wave resonance (SWR) spectra were observed when t he thickness of vanadium is thin, indicating interlayer coupling. The data of SWR were treated approximately respectively by volume inhomoge neity (VI) and volume homogeneity and entire surface pinning (SP) mode ls. The relatively small calculated effective exchange constants showe d weak exchange coupling between Co layers across V spacers.