Coercivity exceeding 100 kOe in epitaxially grown FePt sputtered films
By T. Shima, K. Takanashi, Y. Takahashi, K. Hono. 2004
222 citations recorded by the source corpus.
Microstructure and magnetization processes of highly ordered FePt(001) films with large perpendicular magnetic anisotropy have been studied. The film morphology was controlled from assemblies of single-domain nanoparticles to those of multidomain islands by varying the nominal thickness (tN) of the FePt films sputter-deposited on a heated MgO(001) substrate. The change in the magnetization process from magnetization rotation to domain wall displacement is clearly demonstrated by the initial magnetization curves. Huge coercivities as high as 70 and 105kOe have been achieved in the film with single-domain particles at room temperature and 4.5K, respectively.
Subfields: Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials, Mechanical Engineering
View Paper: https://www.semanticscholar.org/paper/186f65825d138646816aa881fc52c0cbb72511c1
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In Atomic and Molecular Physics, and Optics
In Electronic, Optical and Magnetic Materials
Citations in the corpus
- Hard Magnetic Materials: A Perspective (2011, background): “ities have been achieved thin films composed of single-domain particles; in a layer of isolated FePt nanoparticles, for example, exhibited a coercivity exceeding 90% of the anisotropy field [25].”