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arxiv: 1211.0916 · v1 · pith:WYGIKUABnew · submitted 2012-11-05 · ❄️ cond-mat.mtrl-sci · cond-mat.mes-hall

Investigation of induced Pt magnetic polarization in Pt/Y3Fe5O12 bilayers

Stephan Gepr\"ags , Sibylle Meyer , Stephan Altmannshofer , Matthias Opel , Fabrice Wilhelm , Andrei Rogalev , Rudolf Gross , Sebastian T. B. Goennenwein This is my paper
classification ❄️ cond-mat.mtrl-sci cond-mat.mes-hall
keywords magneticbilayersxmcdy3fe5o12inducedpolarizationsignalallows
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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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