Characterization of electrodeposited magnetic Co/Pt multilayered nanostructures |
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| Affiliation: | 1. Department of Chemistry & Biology Engineering, Fukui National College of Technology, Fukui 916-8507, Japan;2. H.H. Wills Physics Laboratory, University of Bristol, Bristol BS8 1TL, UK;1. Laboratory of Advanced Materials and Energy Electrochemistry, Research Institute of Surface Engineering, Taiyuan University of Technology, Taiyuan 030024, China;2. State Key Lab of Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China;3. School of Materials Science and Engineering, Shandong University, Jingshi Road 17923, Jinan 250061, China;1. Department of Chemistry, Lanzhou University, Lanzhou, Gansu 730000, PR China;2. School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, PR China;1. Applied Optics Laboratory, Institute of Optics and Precision Mechanics Setif-1- University, 19000 Setif, Algeria;2. GREMI, Orléans University, 14 Rue d’Issoudun BP6744, 45067 Orléans cedex 2, France |
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| Abstract: | Electrodeposition will prove to be promising for the preparation of magnetic metal nanostructures. Multilayered fcc Co/Pt nanostructures grown on a Pt(111) single-crystal substrate by electrodeposition under potential control exhibit a remanent perpendicular magnetization and a large magnetic coercivity, which depend on the multilayer growth mechanism. A possible interfacial alloying below the Pt overlayers induces a magnetic moment on the Pt atoms, leading to asymmetry between Pt/Co and Co/Pt interfaces of the multilayers. The role of the codeposition of Ni as an inhibitor for the nucleus growth process as well as for the dissolution of Co during the Pt deposition is of great importance for the occurrence of the multilayered nanostructure. |
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