Figure 2
From: Voltage-Controlled Magnetic Anisotropy in Fe1−xCox/Pd/MgO system
Wide-area STEM images: (a) area without Co content (x = 0), where a rough interface with MgO is observed; (b) pure Co region (x = 1), where a smoother interface with MgO is observed. At the interface, Pd atoms are observed as brighter spots. (c) EDS images for the x = 0 region. The diffusion of Pd into the Fe layer can be observed. (d) EDS images for the x = 1 region. The Pd layer is well separated from the Co layer. EDS line profiles for the (e) x = 0 and (f) x = 1 regions; the Pd diffusion length in the x = 0 region is estimated to be approximately 2 nm.
