Quantifying the spin mixing conductance of EuO/W heterostructures by spin Hall magnetoresistance experiments

Rosenberger, Paul; Opel, Matthias; Geprägs, Stephan; Huebl, Hans; Gross, Rudolf; Müller, Martina; Althammer, Matthias

Quantifying the spin mixing conductance of EuO/W heterostructures by spin Hall magnetoresistance experiments

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Datum

2021

Autor:innen

Rosenberger, Paul

Opel, Matthias

Geprägs, Stephan

Huebl, Hans

Gross, Rudolf

Müller, Martina

Althammer, Matthias

Publikationstyp

Zeitschriftenartikel

Publikationsstatus

Published

Erschienen in

Applied Physics Letters. American Institute of Physics (AIP). 2021, 118(19), 192401. ISSN 0003-6951. eISSN 1077-3118. Available under: doi: 10.1063/5.0049235

Zusammenfassung

The spin Hall magnetoresistance (SMR) allows to investigate the magnetic textures of magnetically ordered insulators in heterostructures with normal metals by magnetotransport experiments. We here report the observation of the SMR in in situ prepared ferromagnetic EuO/W thin film bilayers with magnetically and chemically well-defined interfaces. We characterize the magnetoresistance effects utilizing angle-dependent and field-dependent magnetotransport measurements as a function of temperature. Applying the established SMR model, we derive and quantify the real and imaginary parts of the complex spin mixing interface conductance. We find that the imaginary part is by one order of magnitude larger than the real part. Both decrease with increasing temperature. This reduction is in agreement with thermal fluctuations in the ferromagnet.

Fachgebiet (DDC)

530 Physik

Zitieren

ISO 690

ROSENBERGER, Paul, Matthias OPEL, Stephan GEPRÄGS, Hans HUEBL, Rudolf GROSS, Martina MÜLLER, Matthias ALTHAMMER, 2021. Quantifying the spin mixing conductance of EuO/W heterostructures by spin Hall magnetoresistance experiments. In: Applied Physics Letters. American Institute of Physics (AIP). 2021, 118(19), 192401. ISSN 0003-6951. eISSN 1077-3118. Available under: doi: 10.1063/5.0049235

BibTex

@article{Rosenberger2021Quant-53757,
  year={2021},
  doi={10.1063/5.0049235},
  title={Quantifying the spin mixing conductance of EuO/W heterostructures by spin Hall magnetoresistance experiments},
  number={19},
  volume={118},
  issn={0003-6951},
  journal={Applied Physics Letters},
  author={Rosenberger, Paul and Opel, Matthias and Geprägs, Stephan and Huebl, Hans and Gross, Rudolf and Müller, Martina and Althammer, Matthias},
  note={Article Number: 192401}
}

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