Static Magnetic Proximity Effect in Pt Layers on Sputter-Deposited NiFe2O4and on Fe of Various Thicknesses Investigated by XRMR
- 5 January 2016
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Magnetics
- Vol. 52 (7), 1-4
- https://doi.org/10.1109/tmag.2015.2512040
Abstract
The longitudinal spin Seebeck effect is detected in sputter-deposited NiFe 2 O 4 films using Pt as a spin detector and compared with the previously investigated NiFe 2 O 4 films prepared by chemical vapor deposition. Anomalous Nernst effects induced by the magnetic proximity effect (MPE) in Pt can be excluded for the sputter-deposited NiFe 2 O 4 films down to a certain limit, since X-ray resonant magnetic reflectivity measurements show no magnetic response down to a limit of 0.04 μB per Pt atom comparable with the case of the chemically deposited NiFe 2 O 4 films. These differently prepared films have various thicknesses. Therefore, we further studied Pt/Fe reference samples with various Fe thicknesses and could confirm that the MPE is only induced by the interface properties of the magnetic material.Keywords
Funding Information
- Deutsche Forschungsgemeinschaft (KU 3271/1-1, RE 1052/24-2)
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