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Electrically detected ferromagnetic resonance

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2007

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Schink, Sebastian W.
Brandlmaier, Andreas
Boger, Andrea
Opel, Matthias
Gross, Rudolf
Keizer, Ruurd S.
Klapwijk, Teun M.
Gupta, Amit
Huebl, Hans
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https://doi.org/10.1063/1.2722027
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Applied Physics Letters. American Institute of Physics (AIP). 2007, 90(16), 162507. ISSN 0003-6951. eISSN 1077-3118. Available under: doi: 10.1063/1.2722027

Zusammenfassung

We study the magnetoresistance properties of thin ferromagnetic CrO2 and Fe3O4 films under microwave irradiation. Both the sheet resistance ρ and the Hall voltage VHall characteristically change when a ferromagnetic resonance (FMR) occurs in the film. The electrically detected ferromagnetic resonance (EDFMR) signals closely match the conventional FMR, measured simultaneously, in both resonance fields and line shapes. The sign and the magnitude of the resonant changes Δρ∕ρ and ΔVHall∕VHall can be consistently described in terms of a Joule heating effect. Bolometric EDFMR thus is a powerful tool for the investigation of magnetic anisotropy and magnetoresistive phenomena in ferromagnetic micro- or nanostructures.

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ISO 690GOENNENWEIN, Sebastian T. B., Sebastian W. SCHINK, Andreas BRANDLMAIER, Andrea BOGER, Matthias OPEL, Rudolf GROSS, Ruurd S. KEIZER, Teun M. KLAPWIJK, Amit GUPTA, Hans HUEBL, 2007. Electrically detected ferromagnetic resonance. In: Applied Physics Letters. American Institute of Physics (AIP). 2007, 90(16), 162507. ISSN 0003-6951. eISSN 1077-3118. Available under: doi: 10.1063/1.2722027
BibTex
@article{Goennenwein2007Elect-52526,
  year={2007},
  doi={10.1063/1.2722027},
  title={Electrically detected ferromagnetic resonance},
  number={16},
  volume={90},
  issn={0003-6951},
  journal={Applied Physics Letters},
  author={Goennenwein, Sebastian T. B. and Schink, Sebastian W. and Brandlmaier, Andreas and Boger, Andrea and Opel, Matthias and Gross, Rudolf and Keizer, Ruurd S. and Klapwijk, Teun M. and Gupta, Amit and Huebl, Hans},
  note={Article Number: 162507}
}
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    <dcterms:abstract xml:lang="eng">We study the magnetoresistance properties of thin ferromagnetic CrO&lt;sub&gt;2&lt;/sub&gt; and Fe&lt;sub&gt;3&lt;/sub&gt;O&lt;sub&gt;4&lt;/sub&gt; films under microwave irradiation. Both the sheet resistance ρ and the Hall voltage V&lt;sub&gt;Hall&lt;/sub&gt; characteristically change when a ferromagnetic resonance (FMR) occurs in the film. The electrically detected ferromagnetic resonance (EDFMR) signals closely match the conventional FMR, measured simultaneously, in both resonance fields and line shapes. The sign and the magnitude of the resonant changes Δρ∕ρ and ΔV&lt;sub&gt;Hall&lt;/sub&gt;∕V&lt;sub&gt;Hall&lt;/sub&gt; can be consistently described in terms of a Joule heating effect. Bolometric EDFMR thus is a powerful tool for the investigation of magnetic anisotropy and magnetoresistive phenomena in ferromagnetic micro- or nanostructures.</dcterms:abstract>
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