Tuning morphology and magnetism in epitaxial L10-FePt films

Highly oriented nonepitaxially grown L10 FePt films

Epitaxial L10 FePt films on SrTiO3 (1 0 0) by sputtering

FePt magnetic thin films (20 nm) were deposited on SrTiO3 (1 0 0) single-crystal substrates at 150, 250, and 350 1C by DC magnetron sputtering. The dependence of the structural and magnetic properties of the FePt films on the substrate temperature was studied. At 150 1C, the FePt film showed a (1 1 1) preferred orientation. At 250 1C, the superlattice FePt (0 0 1) peak appeared indicating that ...

Effect of lattice mismatch on chemical ordering of epitaxial L10 FePt films

The effect of lattice mismatch on the chemical ordering of epitaxial FePt films was studied. The results showed that the lattice constant scd of the FePt films decreased with increasing lattice mismatch « from about 2.23% to 6.33%. Upon further increase of « to about 8.8%, c increased. On the other hand, the variation of the lattice constant sad of the FePt films showed a reversal behavior to t...

Highly anisotropic epitaxial L10 FePt on Pt(001)

Assembly of high-anisotropy L10 FePt nanocomposite films

In this paper we report results on the synthesis and magnetic properties of L10 FePt nanocomposite fi lms. Three fabrication methods have been developed to produce high-anisptropy FePt fi lms: non-epitaxial growth of (0 0 1)-oriented FePt:X (X=Ag, C) composite fi lms that might be used for perpendicular media; monodispersed FePt(CFx) core–shell nanocluster-assembled fi lms grown with a gas-aggr...