Journal
APPLIED PHYSICS LETTERS
Volume 101, Issue 26, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4773509
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Funding
- European Synchrotron Radiation Facility (ESRF) [HE-3784]
- Deutsche Forschungsgemeinschaft (DFG) [SPP 1538, GO 944/4-1]
- German Excellence Initiative via the Nanosystems Initiative Munich (NIM)
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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 L-3 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. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4773509]
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