Tuning magnetic properties of magnetoelectric BiFeO3–NiFe2O4 nanostructures

Crane, Samantha P.; Bihler, Christoph; Brandt, Martin S.; Goennenwein, Sebastian T. B.; Gajek, Martin; Ramesh, Rammamoorthy

Tuning magnetic properties of magnetoelectric BiFeO₃–NiFe₂O₄ nanostructures

Dateien

Zu diesem Dokument gibt es keine Dateien.

Datum

2009

Autor:innen

Crane, Samantha P.

Bihler, Christoph

Brandt, Martin S.

Goennenwein, Sebastian T. B.

Gajek, Martin

Ramesh, Rammamoorthy

DOI (zitierfähiger Link)

https://doi.org/10.1016/j.jmmm.2008.08.114

Sammlungen

Physik

Publikationstyp

Zeitschriftenartikel

Publikationsstatus

Published

Erschienen in

Journal of Magnetism and Magnetic Materials. Elsevier. 2009, 321(4), pp. L5-L9. ISSN 0304-8853. eISSN 1873-4766. Available under: doi: 10.1016/j.jmmm.2008.08.114

Zusammenfassung

Multifunctional thin film nanostructures containing soft magnetic materials such as nickel ferrite are interesting for potential applications in microwave signal processing because of the possibility to shrink the size of device architecture and limit device power consumption. An essential prerequisite to future applications of such a system is a firm understanding of its magnetic properties. We show that nanostructures composed of ferrimagnetic NiFe₂O₄ pillars in a multiferroic BiFeO₃ matrix can be tuned magnetically by altering the aspect ratio of the pillars by depositing films of varying thickness. Magnetic anisotropy is studied using ferromagnetic resonance, which shows that the uniaxial magnetic anisotropy in the growth direction changes sign upon increasing the film thickness. The magnitude of this anisotropy contribution can be explained via a combination of shape and magnetostatic effects, using the object-oriented micromagnetic framework (OOMMF). The key factors determining the magnetic properties of the films are shown to be the aspect ratio of individual pillars and magnetostatic interactions between neighboring pillars.

Fachgebiet (DDC)

530 Physik

Schlagwörter

Magnetoelectric, Ferroelectric, Ferrimagnetic, Anisotropy, Nanostructure, Perovskite, Spinel, Ferrite

Zitieren

ISO 690

CRANE, Samantha P., Christoph BIHLER, Martin S. BRANDT, Sebastian T. B. GOENNENWEIN, Martin GAJEK, Rammamoorthy RAMESH, 2009. Tuning magnetic properties of magnetoelectric BiFeO₃–NiFe₂O₄ nanostructures. In: Journal of Magnetism and Magnetic Materials. Elsevier. 2009, 321(4), pp. L5-L9. ISSN 0304-8853. eISSN 1873-4766. Available under: doi: 10.1016/j.jmmm.2008.08.114

BibTex

@article{Crane2009Tunin-52527,
  year={2009},
  doi={10.1016/j.jmmm.2008.08.114},
  title={Tuning magnetic properties of magnetoelectric BiFeO<sub>3</sub>–NiFe<sub>2</sub>O<sub>4</sub> nanostructures},
  number={4},
  volume={321},
  issn={0304-8853},
  journal={Journal of Magnetism and Magnetic Materials},
  pages={L5--L9},
  author={Crane, Samantha P. and Bihler, Christoph and Brandt, Martin S. and Goennenwein, Sebastian T. B. and Gajek, Martin and Ramesh, Rammamoorthy}
}

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