Structure and magnetic properties of sputtered FePtM (M = Ti,Nb) thin films |
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| Affiliation: | 1. Soft Matter Physics Division and Junior Research Group Biotechnology and Biomedicine, Peter Debye Institute for Soft Matter Physics, Leipzig University, Linnéstr. 5, 04103 Leipzig, Germany;2. Leibniz Institute of Surface Engineering (IOM), Permoser Str. 15, 04318 Leipzig, Germany;3. Division of Surface Physics, Department of Physics and Earth Sciences, Leipzig University, Leipzig, Germany |
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| Abstract: | FePt thin films doped with various Ti and Nb concentrations ranging from 2.9 to 9.1 at.% were prepared by r.f. magnetron sputtering. The structural and magnetic properties of Ti- and Nb-doped FePt thin films were investigated. Structural studies revealed that the long range ordering in FePt thin films depends on the doping concentration and annealing temperature of FePt thin films. The addition of Ti and Nb is found to enhance the grain refining in FePt thin films. The effects of doping concentration on the magnetic properties of FePt thin films were studied and discussed. |
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