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Investigation of induced Pt magnetic polarization in Pt/Y3Fe5O12 bilayers

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2012

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Geprägs, Stephan
Meyer, Sibylle
Altmannshofer, Stephan
Opel, Matthias
Wilhelm, Fabrice
Rogalev, Andrei
Gross, Rudolf

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https://doi.org/10.1063/1.4773509
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http://arxiv.org/abs/1211.0916

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Applied Physics Letters. American Institute of Physics (AIP). 2012, 101(26), 262407. ISSN 0003-6951. eISSN 1077-3118. Available under: doi: 10.1063/1.4773509

Zusammenfassung

Using X-ray magnetic circular dichroism (XMCD) measurements, we explore the possible existence of induced magnetic moments in thin Pt films deposited onto the ferrimagnetic insulator yttrium iron garnet (Y3Fe5O12). Such a magnetic proximity effect is well established for Pt/ferromagnetic metal heterostructures. Indeed, we observe a clear XMCD signal at the Pt L3 edge in Pt/Fe bilayers, while no such signal can be discerned in XMCD traces of Pt/Y3Fe5O12 bilayers. Integrating the XMCD signals allows to estimate an upper limit for the induced Pt magnetic polarization in Pt/Y3Fe5O12 bilayers.

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ISO 690GEPRÄGS, Stephan, Sibylle MEYER, Stephan ALTMANNSHOFER, Matthias OPEL, Fabrice WILHELM, Andrei ROGALEV, Rudolf GROSS, Sebastian T. B. GOENNENWEIN, 2012. Investigation of induced Pt magnetic polarization in Pt/Y3Fe5O12 bilayers. In: Applied Physics Letters. American Institute of Physics (AIP). 2012, 101(26), 262407. ISSN 0003-6951. eISSN 1077-3118. Available under: doi: 10.1063/1.4773509
BibTex
@article{Geprags2012-11-05T16:36:22ZInves-52441,
  year={2012},
  doi={10.1063/1.4773509},
  title={Investigation of induced Pt magnetic polarization in Pt/Y<sub>3</sub>Fe<sub>5</sub>O<sub>12</sub> bilayers},
  number={26},
  volume={101},
  issn={0003-6951},
  journal={Applied Physics Letters},
  author={Geprägs, Stephan and Meyer, Sibylle and Altmannshofer, Stephan and Opel, Matthias and Wilhelm, Fabrice and Rogalev, Andrei and Gross, Rudolf and Goennenwein, Sebastian T. B.},
  note={Article Number: 262407}
}
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