Fig. 1
From: Metallic ferromagnetic films with magnetic damping under 1.4 × 10−3

X-ray diffractometry and reflectometry of Co25Fe75 films on MgO and MgAl2O4 (MAO). a 2θ−ω X-ray diffraction (XRD) scans of Cr(2.8 nm)/Co25Fe75/MgO(001) films with the Co25Fe75 thickness of 6.8 and 34 nm. Inset: XRD rocking curve of the Co25Fe75(002) peak of the 34 nm film gives a full-width-half-maximum (FWHM) of 0.68°. b 2θ−ω scan of a Cr(2.8 nm)/Co25Fe75(34 nm)/MgAl2O4(001) sample. Inset: XRD rocking curve of the Co25Fe75(002) peak gives a FWHM of 0.0057°. X-ray reflectometry scans of c Cr(2.8 nm)/Co25Fe75(6.8 nm)/MgO(001) and d Cr(2.8 nm)/Co25Fe75(6.8 nm)/MAO(001) films, where a corresponding fit (black) gives a surface roughness of 0.4 nm for both samples