title: Nanostructured SmCo5 thin films with perpendicular anisotropy formed in a wide range of Sm-Co compositions.
abstract: In this work, we prepared SmCo5 thin films with (0001) texture exhibiting perpendicular anisotropy in a wide range of Sm(x)Co(100-x) compositions (x = 13.2 approximately 37.0) on Cu/Ta underlayers. At a composition of Sm16.7Co83.3 (SmCo5), the SmCo5 film exhibits a maximum perpendicular coercivity of 18.2 kOe, which is attributed to a good crystallinity and an excellent (000l) texture. The SmCo5 (000l) peaks are shifted to smaller angles compared to the standard powder sample which indicates the formation of a SmCoCu alloy through Cu diffusion. The EDX result for this sample gives a composition of SmCo3Cu2.1 which confirms Cu diffusion into the SmCo5 layer. TEM image shows that SmCo5 film is well crystallized with a grain size of 50 nm.
authors: Department of Materials Science and Engineering, National University of Singapore, 7 Engineering Drive 1, Singapore 117574
authors: L N
authors: LN
authors: Zhang
authors: J F
authors: JF
authors: Hu
authors: J S
authors: JS
authors: Chen
authors: J
authors: J
authors: Ding
mesh_terms: D016880:Anisotropy; D003035:Cobalt / Q000737:chemistry*; D008280:Magnetics; D008422:Materials Testing; D008567:Membranes, Artificial; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure*; D012493:Samarium / Q000737:chemistry*
chemical_list: D008567:Membranes, Artificial; D003035:Cobalt; D012493:Samarium; C053755:samarium cobalt