Investigation of induced Pt magnetic polarization in Pt/Y 3Fe5O12 bilayers

Stephan Geprägs; Sibylle Meyer; Stephan Altmannshofer; Matthias Opel; Fabrice Wilhelm; Andrei Rogalev; Rudolf Gross; Sebastian T.B. Goennenwein

doi:10.1063/1.4773509

Investigation of induced Pt magnetic polarization in Pt/Y ₃Fe₅O₁₂ bilayers

Stephan Geprägs
, Sibylle Meyer
, Stephan Altmannshofer
, Matthias Opel
, Fabrice Wilhelm
, Andrei Rogalev
, Rudolf Gross
, Sebastian T.B. Goennenwein

Lehrstuhl für Technische Physik

Walther-Meissner-Institut
European Synchrotron Radiation Facility

Publikation: Beitrag in Fachzeitschrift › Artikel › Begutachtung

117 Zitate (Scopus)

Abstract

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 (Y 3 Fe₅ O 12). Such a magnetic proximity effect is well established for Pt/ferromagnetic metal heterostructures. Indeed, we observe a clear XMCD signal at the Pt L 3 edge in Pt/Fe bilayers, while no such signal can be discerned in XMCD traces of Pt / Y₃ Fe₅ O 12 bilayers. Integrating the XMCD signals allows to estimate an upper limit for the induced Pt magnetic polarization in Pt / Y₃ Fe₅ O 12 bilayers.

Originalsprache	Englisch
Aufsatznummer	262407
Fachzeitschrift	Applied Physics Letters
Jahrgang	101
Ausgabenummer	26
DOIs	https://doi.org/10.1063/1.4773509
Publikationsstatus	Veröffentlicht - 24 Dez. 2012

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title = "Investigation of induced Pt magnetic polarization in Pt/Y 3Fe5O12 bilayers",

abstract = "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 (Y 3 Fe5 O 12). Such a magnetic proximity effect is well established for Pt/ferromagnetic metal heterostructures. Indeed, we observe a clear XMCD signal at the Pt L 3 edge in Pt/Fe bilayers, while no such signal can be discerned in XMCD traces of Pt / Y3 Fe5 O 12 bilayers. Integrating the XMCD signals allows to estimate an upper limit for the induced Pt magnetic polarization in Pt / Y3 Fe5 O 12 bilayers.",

author = "Stephan Gepr{\"a}gs and Sibylle Meyer and Stephan Altmannshofer and Matthias Opel and Fabrice Wilhelm and Andrei Rogalev and Rudolf Gross and Goennenwein, \{Sebastian T.B.\}",

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T1 - Investigation of induced Pt magnetic polarization in Pt/Y 3Fe5O12 bilayers

AU - Geprägs, Stephan

AU - Meyer, Sibylle

AU - Altmannshofer, Stephan

AU - Opel, Matthias

AU - Wilhelm, Fabrice

AU - Rogalev, Andrei

AU - Gross, Rudolf

AU - Goennenwein, Sebastian T.B.

PY - 2012/12/24

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N2 - 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 (Y 3 Fe5 O 12). Such a magnetic proximity effect is well established for Pt/ferromagnetic metal heterostructures. Indeed, we observe a clear XMCD signal at the Pt L 3 edge in Pt/Fe bilayers, while no such signal can be discerned in XMCD traces of Pt / Y3 Fe5 O 12 bilayers. Integrating the XMCD signals allows to estimate an upper limit for the induced Pt magnetic polarization in Pt / Y3 Fe5 O 12 bilayers.

AB - 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 (Y 3 Fe5 O 12). Such a magnetic proximity effect is well established for Pt/ferromagnetic metal heterostructures. Indeed, we observe a clear XMCD signal at the Pt L 3 edge in Pt/Fe bilayers, while no such signal can be discerned in XMCD traces of Pt / Y3 Fe5 O 12 bilayers. Integrating the XMCD signals allows to estimate an upper limit for the induced Pt magnetic polarization in Pt / Y3 Fe5 O 12 bilayers.

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