Tailoring magnetic properties of multicomponent layered structure via current annealing in FePd thin films
Journal article, 2017

Multicomponent layered systems with tailored magnetic properties were fabricated via current annealing from homogeneous Fe67Pd33 thin films, deposited via radio frequency sputtering on Si/SiO2 substrates from composite target. To promote spontaneous nano-structuring and phase separation, selected samples were subjected to current annealing in vacuum, with a controlled oxygen pressure, using various current densities for a fixed time and, as a consequence, different phases and microstructures were obtained. In particular, the formation of magnetite in different amount was observed beside other iron oxides and metallic phases. Microstructures and magnetic properties evolution as a function of annealing current were studied and interpreted with different techniques. Moreover, the temperature profile across the film thickness was modelled and its role in the selective oxidation of iron was analysed. Results show that is possible to topologically control the phases formation across the film thickness and simultaneously tailor the magnetic properties of the system.

fe3o4

iron

alloys

Author

Matteo Cialone

Istituto nazionale di ricerca metrologica (INRiM)

University of Turin

Federica Celegato

Istituto nazionale di ricerca metrologica (INRiM)

Marco Coisson

Istituto nazionale di ricerca metrologica (INRiM)

Gabriele Barrera

Istituto nazionale di ricerca metrologica (INRiM)

Gianluca Fiore

University of Turin

Ruslan Shvab

Chalmers, Materials and Manufacturing Technology, Surface and Microstructure Engineering

Uta Klement

Chalmers, Materials and Manufacturing Technology

Paola Rizzi

University of Turin

Paola Tiberto

Istituto nazionale di ricerca metrologica (INRiM)

Scientific Reports

2045-2322 (ISSN)

Vol. 7 1 16691

Driving Forces

Sustainable development

Subject Categories

Materials Engineering

DOI

10.1038/s41598-017-16963-5

More information

Latest update

9/6/2018 2