@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 Gönnenwein, Sebastian T. B. and Gajek, Martin and Ramesh, Rammamoorthy}
}

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    <dc:creator>Bihler, Christoph</dc:creator>
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    <dc:creator>Ramesh, Rammamoorthy</dc:creator>
    <dc:contributor>Gönnenwein, Sebastian T. B.</dc:contributor>
    <dcterms:title>Tuning magnetic properties of magnetoelectric BiFeO&lt;sub&gt;3&lt;/sub&gt;–NiFe&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;4&lt;/sub&gt; nanostructures</dcterms:title>
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    <dc:creator>Gönnenwein, Sebastian T. B.</dc:creator>
    <dc:contributor>Crane, Samantha P.</dc:contributor>
    <dc:contributor>Gajek, Martin</dc:contributor>
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    <dc:contributor>Brandt, Martin S.</dc:contributor>
    <dc:creator>Gajek, Martin</dc:creator>
    <dc:creator>Crane, Samantha P.</dc:creator>
    <dc:language>eng</dc:language>
    <bibo:uri rdf:resource="https://kops.uni-konstanz.de/handle/123456789/52527"/>
    <dc:contributor>Ramesh, Rammamoorthy</dc:contributor>
    <dc:creator>Brandt, Martin S.</dc:creator>
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    <dc:contributor>Bihler, Christoph</dc:contributor>
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    <dcterms:abstract xml:lang="eng">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 NiFe&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;4&lt;/sub&gt; pillars in a multiferroic BiFeO&lt;sub&gt;3&lt;/sub&gt; 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.</dcterms:abstract>
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